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UAA2068

Transmit chain and synthesizer with integrated VCO for DECT

Philips Electronics 

Philips Semiconductors

Transmit chain and synthesizer with

integrated VCO for DECT

PINNING

SYMBOL

DATA

VCC(SYD)

SYDGND

XTAL

VCC(SYA)

SYAGND

CPGND

CP

VCC(CP)

RSET

VCC(DBL)

LOA

LOB

DBLGND

T_EN

VCC(BUF)

VCC(VCO)

VMOD

VCOGND

VCOA

VCOB

VCGND

VTUNE

VREG

VCO_ON

R_OFF

AMPGND

TXB

TXA

VCC(AMP)

CLK

S_EN

PIN

DESCRIPTION

1 3-wire programming bus data input

2 synthesizer CMOS divider positive supply voltage

3 synthesizer CMOS divider ground

4 reference frequency input

5 synthesizer prescaler positive supply voltage

6 synthesizer prescaler ground

7 charge-pump ground

8 charge-pump output signal

9 charge-pump positive supply voltage

10 charge-pump current setting input

11 doubler positive supply voltage

12 local oscillator output A

13 local oscillator output B

14 doubler ground

15 transmit enable signal input

16 VCO isolation buffer positive supply voltage

17 VCO positive supply voltage

18 transmit modulation input

19 VCO ground; note 1

20 VCO inductor connection A

21 VCO inductor connection B

22 internal varicap ground; note 1

23 VCO tuning input

24 VCO regulator output

25 VCO power on control input; note 2

26 power on control for RX LO buffer/TX preamplifier; note 3

27 transmit amplifier ground

28 transmit amplifier output B

29 transmit amplifier output A

30 transmit amplifier positive supply voltage

31 3-wire programming bus clock input

32 synthesizer enable signal input

Notes

1. Pins 19 and 22 are internally short-circuited.

2. Use with S_PWR on ABC baseband chip.

3. Use with R_PWR on ABC baseband chip.

Product specification

UAA2068G

1998 Nov 19

5

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