SA1638 Datasheet, PDF (4/26 Pages) NXP Semiconductors – Low voltage IF I/Q transceiver

Philips Semiconductors
Low voltage IF I/Q transceiver
Product specification
SA1638
PIN DESCRIPTIONS
Pin No. Pin Name
Description
1 VREG1
Output voltage of regulator 1
2 VREGF2
Feedback of regulator 2
3 VREG2
Output voltage of regulator 2
4 GNDREG2 Ground of regulator 2
5 PON
6
V_BATT
7 AOUT
Power-on input for voltage regulators 1 and 2 (active high)
Input voltage for regulators 1 and 2
Programmable logic output (see Figure 9)
8 BOUT
9 DCRES
Programmable logic output (see Figure 9)
Reference current setting resistor for DC offset circuit
10 RESD
Additional external current defining resistor for filters
11 RESA
12 RESB
Principal external current defining resistor for filters
Principal external current defining resistor for filters
13 PONRx
Power-on input for Rx (active high)
14 V_REF
15 QRxOUT
Reference voltage
Differential receive baseband output
16 QRxOUTX
Differential receive baseband output
17 IRxOUT
18 IRxOUTX
Differential receive baseband output
Differential receive baseband output
19 QTx IN
Differential transmit baseband input
20 QTx INX
21 ITx IN
Differential transmit baseband input
Differential transmit baseband input
22 ITx INX
Differential transmit baseband input
23 PDTx
24 V_CCDIG
25 V_EEDIG
26 DATA
27 CLOCK
Power-on for transmitter (active low)
Digital circuit supply
Digital ground
Serial bus data input
Serial bus clock input
28 STROBE
Serial bus strobe input
29 LOCK
Test control/synthesizer lock indicator
30 CLK INX
Differential reference divider input
31 CLK IN
Differential reference divider input
32 ADJ IN
33 LO IN
Used for test only. Do not connect
Differential LO input
34 LO INX
Differential LO input
35 I_REF
36 V_EECP
37 CP
Reference current setting for charge pump
Charge pump ground
Charge pump output
38 V_CCCP
39 POnPLL
Charge pump circuit supply
Power-on input for synthesizer circuits (active high)
40 GND3
Ground (internal connection to GND1 and GND2)
41 TxIFOUTX
Differential transmit IFoutput (open collector)
42 TxIFOUT
Differential transmit IFoutput (open collector)
43 GND2
Ground (internal connection to GND1 and GND3)
44 RxIF INX
Differential receive IF input
45 RxIF IN
Differential receive IF input
46 GND1
Ground (internal connection to GND2 and GND3)
47 V_CCTxRx
48 GNDREG1
Transmit and receive circuits supply voltage (also feedback of Regulator 1)
Ground of regulator 1
NOTE: There are no ESD protection diodes at Pins 41 and 42. Thus, open collector outputs may have increased DC voltage or higher AC
peak voltage.
1997 Sept 03
4