STB4395 Datasheet, PDF (4/16 Pages) STMicroelectronics – CT2 RECEIVER/TRANSMITTER

STB4395
1 - PIN DESCRIPTION (continued)
1.2 - Pin List
Pin
Name
Description
Ext. Connection and
Suppl. Information
1
NPRGEN Serial Data Enable
2
PRGCLK Serial Data Clock
3
PRGD
Serial Data Input
4
NTXEN Receive-Transmit Switch
5
LOCK
VCO Lock Detect-all 3 PLL
6
I
I - Transmit Quadrature Input
7
NI
I - Transmit Quadrature Input
STB4395 only
8
NQ
Q-Transmit Quadrature Input
STB4395 only
9
Q
Q-Transmit Quadrature Input
STB4395 only
7
REFIQ IQ Reference Quadrature Transmit Input
STB4395A only
8
Q
Q-Transmit Quadrature Input
STB4395A only
9
FN
Forces Data Slicer Reference Time Constant To fast
STB4395A only
10
EN
Power Down all functions except buffer
11
VNOSC Negative Power Supply all VCO ’s
12 SYNCLK Synthesizer Clock Input
f = 14.4MHz A.C. coupled
13
VRO
PSU Regulated Negative Input for TX IF oscillator and pump circuit
14
VCOO
TX oscillator tank circuit
15
NVCOO TX Oscillator Tank Circuit
16
FLTRO Loop Filter for TX PLL
17
VPO
Positive Battery Supply for TX oscillator
18
DO
Receive Data Output
19
SLTC
Slicer Time Constant Capacitor
C= 33nF
20
FSH
Data Slicer Time Constant Setting
21
FLTRS Loop Filter for channel PLL
22
VRS
Regulated Negative Supply for channel oscillator and pump circuit
23
VPS1
Positive Battery Input for channel oscillator and pump circuit
24
NVCOS Channel Oscillator Tank Input
650 to 850MHz
25
VCOS
Channel Oscillator Tank Input
650 to 850MHz
26
VPS2
Positive Battery Supply Input for channel oscillator and pump circuit
27
BRF3
Bit Rate Filter3
28
BRF1
Bit Rate Filter1
29
DISCI
FM Discriminator Tank Circuit
30
DISCO FM Discriminator Tank Circuit
31
BRF2
Bit Rate Filter 2
32
VPI
Positive Battery Supply for RXoscillator and pump circuit
33
FLTRI
Loop Filter for RX oscillator
34
NVCOI RX Oscillator Tank Circuit
35
VCOI
RX Oscillator Tank Circuit
36
VRI
Regulated Negative Supply for RX oscillator and pump circuit
37
RSSI
RSSI OUTPUT
38
VRIF
Regulated Negative Supply Output for RX sections
39
NDEC
RX IF2 Decoupling
40
NIF2I
RX IF2 Filter Input
41
IF2I
RX IF2 Filter Input
42
DEC
RX IF2 Decoupling
43
IF2O
RX IF2 Filter Output
44
NIF2O
RX IF2 Filter Output
45
VPIF
Positive Battery Supply Input for RX sections
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