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SA637 Datasheet(PDF) 8 Page - NXP Semiconductors

Part # SA637
Description  Low-voltage digital IF receiver
PDF  11 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SA637 Datasheet(HTML) 8 Page - NXP Semiconductors

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Philips Semiconductors RF Communications Products
Product specification
SA637
Low-voltage digital IF receiver
October 27, 1993
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FAST RSSI
MIXER
RSSI BUFFER
PWD
C11
VCC
R49
R47
R48
R29
R28
R27
C20
C27
C29
C30
C31
C33
C32
FLT2
SW7
SW6
SW8
SW9
C26
C28
R31
FLT1
10nF
C1
C2
C3
C4
C5
C6
C11
C20
C21
C26
Automatic Test Circuit Component List
R38
R37
R33
R35
R34
R32
OSCILLATOR
LIMITER
+ –
+ –
RSSI FB
OSC
C21
R50
Figure 1. SA637 Automatic Test Circuit
PAD
IF
AMP
C12
C5
C4
100nF
10nF
91pF
620pF
100nF
100nF
100nF
100nF
100nF
C30
C31
C27
C28
C29
C32
C33
R1
R2
R3
100nF
100nF
100nF
100nF
100nF
100nF
R16
R17
R4
R13
R14
R20
R27
R28
R29
R31
49.9
Ω
10k
Ω
10k
Ω
100nF
249
Ω
60.4
Ω
60.4
Ω
PAD
PAD
PAD
PAD
10k
Ω
10k
Ω
1k
Ω
13.7k
Ω
1.68k
Ω
1k
Ω
49.9
Ω
R35
R38
R32
R33
R34
R39
R45
R47
R48
R49
49.9
Ω
13.7k
Ω
1.68k
Ω
49.9
Ω
49.9
Ω
1k
Ω
49.9
Ω
2.43k
Ω
49.9
Ω
39.2k
Ω
R50
R51
L2
1k
Ω
49.9
Ω
62nH
48dB
32.2dB
48dB
32.2dB
LIMITER
OUT (+)
LO
BUFF
R51
LIMITER
OUT (–)
RSSI
OUT
LO
IN
RF
IN
R20
R16
C22
R17
R45
C6
R4
R14
R13
C1
C2
C3
R2
L2
R1
R3
R32 49.9
Ω



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