PE64102 Specification Datasheet by pSemi

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Page 1 of 13

General Description

The PE64102 is a DuNE™-enhanced digitally tunable

capacitor (DTC) based on pSemi’s UltraCMOS®

technology. DTC products provide a monolithically

integrated impedance tuning solution for demanding

RF applications. They also offer a linear capacitance

change versus tuning state and excellent harmonic

performance compared to varactor-based tunable

solutions.

This highly versatile product can be mounted in series

or shunt configurations and uses a 3-wire (SPI

compatible) serial interface. It has a high ESD rating of

2 kV HBM on all ports making this the ultimate in

integration and ruggedness. The DTC will be offered in

a standard 12-lead 2.0 x 2.0 x 0.55 mm QFN

commercial package.

pSemi’s DuNE™ technology enhancements deliver

high linearity and exceptional harmonics performance.

It is an innovative feature of the UltraCMOS® process,

providing performance superior to GaAs with the

economy and integration of conventional CMOS.

UltraCMOS® Digitally Tunable Capacitor

(DTC) 100–3000 MHz

Features

 3-wire (SPI compatible) 8-bit serial interface

with built-in bias voltage generation and

stand-by mode for reduced power

consumption

 DuNETM-enhanced UltraCMOS® device

 5-bit 32-state digitally tunable capacitor

 C = 1.88 pF – 14.0 pF (7.4:1 tuning ratio) in

discrete 391 fF steps

 RF power handing (up to 26 dBm, 6 VPK RF)

and high linearity

 High quality factor

 Wide power supply range (2.3V to 3.6V) and

low current consumption

(typ. IDD = 30 µA @ 2.8V)

 Optimized for shunt configuration, but can

also be used in series configuration

 Excellent 2 kV HBM ESD tolerance on

all pins

 Applications include:

 Antenna tuning

 Tunable filters

 Phase shifters

PE64102

Product Specification

Figure 1. Functional Block Diagram

71-0066-01

Figure 2. Package Type

12-lead 2 x 2 x 0.55 mm QFN

Semi

Product Specification

PE64102

Page 2 of 13

Parameter Configuration Condition Min Typ Max Unit

Operating Frequency Range 7 Both 100 3000 MHz

Minimum Capacitance Shunt 6 State = 00000, 100 MHz (RF+ to Grounded RF-) -10% 1.88 +10% pF

Maximum Capacitance Shunt 6 State = 11111, 100 MHz (RF+ to Grounded RF-) -20% 14.0 +20% pF

Tuning Ratio Shunt 6 C

max/Cmin, 100 MHz 7.4:1

Step Size Shunt 6 5 bits (32 states), constant step size (100 MHz) 0.391 pF

Quality Factor (Cmin) 1 Shunt 6

470 – 582 MHz with Ls removed

698 – 960 MHz, with Ls removed

1710 – 2170 MHz, with Ls removed

50

28

Quality Factor (Cmax) 1 Shunt 6

470 – 582 MHz with Ls removed

698 – 960 MHz, with Ls removed

1710 – 2170 MHz, with Ls removed

25

20

5

Self Resonant Frequency Shunt 7 State 00000

State 11111 4.7

1.6 GHz

Harmonics (2fo and 3fo) 4

Shunt 6

470 – 582 MHz, Pin +26 dBm, 50Ω

698 – 915 MHz, Pin +26 dBm, 50Ω

1710 – 1910 MHz, Pin +26 dBm, 50Ω

-36

dBm

Series 5

470 – 582 MHz, Pin +20 dBm, 50Ω

698 – 915 MHz, Pin +20 dBm, 50Ω

1710 – 1910 MHz, Pin +20 dBm, 50Ω

-36

dBm

3rd Order Intercept Point Shunt 6 IIP3 = (Pblocker + 2*Ptx - [IMD3]) / 2, where IMD3 = -95 dBm,

Ptx = +20 dBm and Pblocker = -15 dBm 60 dBm

Switching Time 2, 3 Shunt 6 State change to 10/90% delta capacitance between only two

states 2 10 µs

Start-up Time 2 Shunt 6 Time from VDD within specification to all performances within

specification 5 20 µs

Wake-up Time 2,3 Shunt

6 State change from standby mode to RF state to all

performances within specification 5 20 µs

Table 1. Electrical Specifications @ 25°C, VDD = 2.8V

Note: 1. Q for a Shunt DTC based on a Series RLC equivalent circuit

Q = XC / R = (X-XL) / R, where X = XL + XC , XL = 2*pi*f*L, XC = -1 / (2*pi*f*C), which is equal to removing the effect of parasitic inductance LS

2. DC path to ground at RF+ and RF– must be provided to achieve specified performance

3. State change activated on falling edge of SEN following data word

4. Between 50Ω ports in series or shunt configuration using a pulsed RF input with 4620 vs period, 50% duty cycle, measured per 3GPPTS45.005

5. In series configuration the greater RF power or higher RF voltage should be applied to RF+

6. RF- should be connected to ground

7. DTC operation above SRF is possible

Semi VDD 6ND RF

Product Specification

PE64102

Page 3 of 13

Figure 3. Pin Configuration (Top View)

Table 2. Pin Descriptions

Pin # Pin Name Description

1 SEN Serial Enable

2 GND Digital and RF Ground

3 SCLK Serial Interface Clock Input

4 VDD Power Voltage

5 GND Digital and RF Ground

6 RF- Negative RF Port

1

7 RF- Negative RF Port

1

8 GND Digital and RF Ground 3

9 RF+ Positive RF Port 2

10 RF+ Positive RF Port 2

13 GND Digital and RF Ground 3

12 SDAT Serial Interface Data Input

11 GND Digital and RF Ground

Notes: 1. Pins 6 and 7 must be tied together on PCB board to reduce

inductance

2. Pins 9 and 10 must be tied together on PCB board to reduce

inductance

3. Pins 2, 5, 8, 11 and 13 must be connected together on PCB

SEN

6

7

81

2

3

GND

SCLK

RF+

GND

RF-

13

GND

12 11 10

9

456

8

7

1

2

3

Pin 1

Latch-Up Avoidance

Unlike conventional CMOS devices, UltraCMOS®

devices are immune to latch-up.

Moisture Sensitivity Level

The Moisture Sensitivity Level rating for the

PE64102 in the 12-lead 2 x 2 mm QFN package is

MSL1.

Table 3. Operating Ranges1

Parameter Symbol Min Typ Max Units

VDD Supply Voltage VDD 2.3 2.8 3.6 V

IDD Power Supply Current

(Normal mode) 6 IDD 30 75 µA

IDD Power Supply Current

(Standby mode) 2, 6 IDD 20 45 µA

Control Voltage High VIH 1.2 3.1 V

Control Voltage Low VIL 0 0.2 V

Peak Operating RF Voltage 5

VP to VM

VP to RFGND

VM to RFGND

6

VPK

RF Input Power (50Ω) 3, 4, 5

shunt

series

+26

+20

dBm

Input Control Current ICTL 1 10 µA

Operating Temperature Range TOP -40 +85 °C

Storage Temperature Range TST -65 +150 °C

Table 4. Absolute Maximum Ratings

Symbol Parameter/Conditions Min Max Units

VDD Power supply voltage -0.3 4.0 V

VESD ESD Voltage (HBM, MIL_STD

883 Method 3015.7) 2000 V

VESD ESD Voltage (MM, JEDEC

JESD22-A115-A) 100 V

VI Voltage on any DC input -0.3 4.0 V

VESD ESD Voltage (CDM, JEDEC

JESD22-C101) 250 V

Notes: 1. Operation should be restricted to the limits in the Operating Ranges table

2. The DTC is active when STBY is low (set to 0) and in low-current

stand-by mode when high (set to 1)

3. Maximum CW power available from a 50Ω source in shunt configuration

4. Maximum CW power available from a 50Ω source in series configuration

5. RF+ to RF- and RF+ and/or RF- to ground. Cannot exceed 6 VPK or max

RF input power (whichever occurs first)

6. IDD current typical value is based on VDD = 2.8V. Max IDD is based on

Exceeding absolute maximum ratings may cause

permanent damage. Operation between operating

range maximum and absolute maximum for

Electrostatic Discharge (ESD) Precautions

When handling this UltraCMOS® device, observe

the same precautions that you would use with other

ESD-sensitive devices. Although this device

contains circuitry to protect it from damage due to

ESD, precautions should be taken to avoid

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Product Specification

PE64102

Page 4 of 13

Figure 6. Measured Step Size vs State

(frequency)

Figure 5. Measured Shunt S11 (major states)

Performance Plots @ 25°C and 2.8V unless otherwise specified

Figure 8. Measured Shunt C vs

Frequency (major states)

Figure 9. Measured Series S21 vs Frequency

(major states)

Figure 4. Measured Shunt C (@ 100 MHz) vs

State (temperature)

Figure 7. Measured Series S11/S22 (major states)

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Product Specification

PE64102

Page 5 of 13

Figure 11. Measured 2-Port Shunt S21 vs

Frequency (major states)

Figure 10. Measured Shunt Q vs

Figure 12. Measured Self Resonance

Frequency vs State

Figure 13. Measured Shunt Q vs State

510 15 20 25 30

0

20

40

60

80

100

120

140

160

State

Q

Measured Q vs. State

100 MHz

470 MHz

698 MHz

1710 MHz

Semi

Product Specification

PE64102

Page 6 of 13

Serial Interface Operation and Sharing

The PE64102 is controlled by a three wire SPI-

compatible interface. As shown in Figure 14, the

serial master initiates the start of a telegram by

driving the SEN (Serial Enable) line high. Each bit

of the 8-bit telegram is clocked in on the rising

edge of the SCL (Serial Clock) line. SDA bits are

clocked by most significant bit (MSB) first, as

shown in Table 5 and Figure 14. Transactions on

SDA (Serial Data) are allowed on the falling edge

of SCL. The DTC activates the data on the falling

edge of SEN. The DTC does not count how many

bits are clocked and only maintains the last 8 bits

it received.

More than 1 DTC can be controlled by one

interface by utilizing a dedicated enable (SEN) line

for each DTC. SDA, SCL, and VDD lines may be

shared as shown in Figure 15. Dedicated SEN

lines act as a chip select such that each DTC will

only respond to serial transactions intended for

them. This makes each DTC change states

sequentially as they are programmed.

Figure 14. Serial Interface Timing Diagram (oscilloscope view)

b5b6

t

R

t

DHD

t

DSU

1/f

CLK

b7 b0b4 b3 b2 b1

D

m-1

<7:0> D

m

<7:0>

b0

D

m-2

<7:0>

t

EPW

t

F

t

ESU

t

EHD

SEN

SCL

SDA

DTC Data

Semi IN ”\

Product Specification

PE64102

Page 7 of 13

Table 5. 6-Bit Serial Programming Register Map

Table 6. Serial Interface AC Characteristics

2.3V < VDD < 3.6V, -40 °C < TA < +85 °C, unless otherwise specified

Symbol Parameter Min Max Unit

fCLK Serial Clock Frequency 26 MHz

tR SCL, SDA, SEN Rise Time 6.5 ns

tF SCL, SDA, SEN Fall Time 6.5 ns

tESU SEN rising edge to SCL rising edge 19.2 ns

tEHD SCL rising edge to SEN falling edge 19.2 ns

tDSU SDA valid to SCL rising edge 13.2 ns

tDHD SDA valid after SCL rising edge 13.2 ns

tEOW SEN falling edge to SEN rising edge 38.4 ns

b4 b3 b2 b1 b0

d4 d3 d2 d1 d0

b5

STB1

b7 b6

0 0

MSB (first in) LSB (last in)

Note: 1. The DTC is active when low (set to 0) and in low-current stand-by

mode when high (set to 1)

Figure 15. Recommended Bus sharing

SCL

SDA

VDD

GND

DGND

RF-

RF+

SCL

SDA

VDD

SEN

GND

DGND

RF-

RF+

SCL

SDA

VDD

DTC 1

SEN

SEN2

SEN1

DTC 2

Semi R R ? RFGND

Product Specification

PE64102

Page 8 of 13

Equivalent Circuit Model Description

The DTC Equivalent Circuit Model includes all

parasitic elements and is accurate in both Series

and Shunt configurations, reflecting physical circuit

behavior accurately and providing very close

correlation to measured data. It can easily be used

in circuit simulation programs. Simple equations

are provided for the state dependent parameters.

The Tuning Core capacitance CS represents

capacitance between RF+ and RF- ports. It is

linearly proportional to state (0 to 31 in decimal) in

a discrete fashion. The Series Tuning Ratio is

defined as CSmax/CSmin.

CP1 and CP2 represent the circuit and package

parasitics from RF ports to GND. In shunt

configuration the total capacitance of the DTC is

higher due to parallel combination of CP and CS. In

Series configuration, CS and CP do not add in

parallel and the DTC appears as an impedance

transformation network.

Parasitic inductance due to circuit and package is

modeled as LS and causes the apparent

capacitance of the DTC to increase with frequency

until it reaches Self Resonant Frequency (SRF).

The value of SRF depends on state and is

approximately inversely proportional to the square

root of capacitance.

The overall dissipative losses of the DTC are

modeled by RS, RP1 and RP2 resistors. The

parameter RS represents the Equivalent Series

Resistance (ESR) of the tuning core and is

dependent on state. RP1 and RP2 represent losses

due to the parasitic and biasing networks.

Table 8. Maximum Operating RF Voltage

Condition Limit

VP to VM 6 VPK

VP to RFGND 6 VPK

VM to RFGND 6 VPK

Figure 16. Equivalent Circuit Model Schematic

Table 7. Equivalent Circuit Model Parameters

Variable Equation (state = 0, 1, 2…31) Unit

CS 0.394*state + 1.456 pF

RS 15/(state+15/(state+0.4)) + 0.4 Ω

CP1 -0.0026*state + 0.4155 pF

CP2 0.0029*state + 0.4914 pF

RP1 4 Ω

RP2 22000 + 6*(state)^3 Ω

LS 0.4 nH

Semi

Product Specification

PE64102

Page 9 of 13

Table 9. Equivalent Circuit Data

State DTC Core Parasitic Elements

Binary Decimal Cs [pF] Rs [Ω] Cp1 [pF] Cp2 [pF] Rp2 [kΩ] Ls [nH] Rp1 [Ω]

00000 0 1.40 0.80 0.42 0.49 22.0

0.40

00001 1 1.79 1.68 0.41 0.49 22.0

00010 2 2.19 2.22 0.41 0.50 22.0

00011 3 2.58 2.42 0.41 0.50 22.2

00100 4 2.98 2.42 0.41 0.50 22.4

00101 5 3.37 2.33 0.40 0.51 22.8

00110 6 3.76 2.20 0.40 0.51 23.3

00111 7 4.16 2.06 0.40 0.51 24.1

01000 8 4.55 1.93 0.39 0.51 25.1

01001 9 4.95 1.82 0.39 0.52 26.4

01010 10 5.34 1.71 0.39 0.52 28.0

01011 11 5.73 1.62 0.39 0.52 30.0

01100 12 6.13 1.54 0.38 0.53 32.4

01101 13 6.52 1.46 0.38 0.53 35.2

01110 14 6.92 1.40 0.38 0.53 38.5

01111 15 7.31 1.34 0.38 0.53 42.3

10000 16 7.70 1.29 0.37 0.54 46.6

10001 17 8.10 1.24 0.37 0.54 51.5

10010 18 8.49 1.20 0.37 0.54 55.0

10011 19 8.89 1.16 0.37 0.55 63.2

10100 20 9.28 1.12 0.36 0.55 70.0

10101 21 9.67 1.09 0.36 0.55 77.6

10110 22 10.07 1.06 0.36 0.56 85.9

10111 23 10.46 1.03 0.36 0.56 95.0

11000 24 10.86 1.01 0.35 0.56 104.9

11001 25 11.25 0.99 0.35 0.56 115.8

11010 26 11.64 0.96 0.35 0.57 127.5

11011 27 12.04 0.94 0.35 0.57 140.1

11100 28 12.43 0.93 0.34 0.57 153.7

11101 29 12.83 0.91 0.34 0.58 168.3

11110 30 13.22 0.89 0.34 0.58 184.0

11111 31 13.61 0.88 0.33 0.58 200.7

4.0

Semi

Product Specification

PE64102

Page 10 of 13

Figure 17. Evaluation Board Layout

PRT-20810

Evaluation Board

The 101-0700 Evaluation Board (EVB) was

designed for accurate measurement of the DTC

impedance and loss. Two configurations are

available: 1 Port Shunt (J3) and 2 Port Shunt (J4,

J5). Three calibration standards are provided. The

open (J2) and short (J1) standards (104 ps delay)

are used for performing port extensions and

accounting for electrical length and transmission

line loss. The Thru (J9, J10) standard can be used

to estimate PCB transmission line losses for scalar

de-embedding of the 2 Port Shunt configuration (J4,

J5).

The board consists of a 4 layer stack with 2 outer

layers made of Rogers 4350B (εr = 3.48) and 2

inner layers of FR4 (εr = 4.80). The total thickness

of this board is 62 mils (1.57 mm). The inner layers

provide a ground plane for the transmission lines.

Each transmission line is designed using a coplanar

waveguide with ground plane (CPWG) model using

a trace width of 32 mils (0.813 mm), gap of 15 mils

(0.381 mm), and a metal thickness of 1.4 mils

(0.036 mm).

Semi ‘2 m A 4mm ”43 ‘ ‘z u “ SD“ ‘ m g *1 i J 4 2 J‘ 1 PORT SNNT 5—1. «w u r-Emmx um m m W. x w ,2 m 5 m m 4]: my i 4.1 4; WW ‘ 13 I? “:3; ‘ A“ 3 u 4?. 33m, M 2 ‘ J—J i—A ‘H—H ‘H—H

Product Specification

PE64102

Page 11 of 13

SHORT

1PORTSHUNT

2PORTSHUNT

J2

SMA CONN

TP4

J9

SMA CONN

J10

SMA CONN

J1

SMA CONN

TP5

J3

SMA CONN

C3

100pF

1

3

5

7

22

44

66

88

10 10

12 12

14 14 13

13

9

11

J8

14 PIN HEADER

J5

SMA CONN

C7

100pF

1

3

5

7

22

44

66

88

10 10

12 12

14 14 13

13

9

11

J11

14 PIN HEADER

R3 DNI

R1 DNI

R2 DNI

R4 DNI

C9

100pF

C10

100pF

C11

100pF

R5 DNI

R6 DNI

R7 DNI

R8 DNI

C12

100pF

C13

100pF

C14

100pF

R9 DNI

R10 DNI

R11 DNI

R12 DNI

R13 DNI

R14 DNI

J4

SMA CONN

6RF-

7RF-

2GND

4VDD

1

SEN

12

SDAT

10

RF+

9

RF+

11 GND

3SCL K

5GND

8GND

13 PADDLE

U1

PE6410X_QFN_12L_2X2

6RF-

7RF-

2GND

4VDD

1

SEN

12

SDAT

10

RF+

9

RF+

11 GND

3SCL K

5GND

8GND

13 PADDLE

U2

PE6410X_QFN_12L_2X2

OPEN

THRU

SCL

SEN

SDA

VDD

VDD_1

SCL_1

SEN_1

SDA_1

Figure 18. Evaluation Board Schematic

DOC-31126

Product Specification

PE64102

Page 12 of 13

Figure 19. Package Drawing

12-lead 2 x 2 x 0.55 mm QFN

Figure 20. Top Marking Specifications

PPZZ

YWW

Marking Spec

Symbol

Package

Marking Definition

PP CS Part number marking for PE64102

ZZ 00-99 Last two digits of lot code

Y 0-9 Last digit of year, starting from 2009

(0 for 2010, 1 for 2011, etc)

WW 01-53 Work week

17-0112

2.00

A

0.10 C

C

0.10 C

TOP VIEW

SIDE VIEW

BOTTOM VIEW

0.05 C

SEATING PLANE

PIN #1 Identifier

B

(X2)

0.10 C A B

0.05 C

ALL FEATURES

RECOMMENDED LAND PATTERN

0.10 C

(X2)

1.10±0.05

0.50

0.20±0.05

(X12) 0.275±0.05

(X12)

1.00

1

3

4

6

79

10

12

2.40

0.475

(X12)

0.25

(X12)

0.50

1.10

2.40

1.10

0.152 REF. 0.05 MAX

0.60 MAX

DOC-01882

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Product Specification

PE64102

Page 13 of 13

Figure 21. Tape and Reel Specifications

12-lead 2 x 2 x 0.55 mm QFN

Tape Feed Direction

Table 10. Ordering Information

Order Code Package Description Shipping Method

PE64102B-Z 12-lead 2 x 2 x 0.55 mm QFN Package Part in Tape and Reel 3000 units/T&R

EK64102-12 Evaluation Kit Evaluation Kit 1 Set/Box

Device Orientation in Tape

Sales Contact and Information

For sales and contact information please visit www.psemi.com.

PE64102 Specification Datasheet by pSemi

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