SSRX3930 Datasheet, PDF (1/7 Pages) List of Unclassifed Manufacturers – LOW POWER ISM BAND FM/FSK RECEIVER IC

SSRX3930
Low Power ISM-Band FM/FSK Receiver IC
Description
The SSRX3930 is a low power 433/868/915 MHz FM/FSK receiver IC which is suitable
for use in the North American 915 MHz and the European 433 and 868 MHz ISM bands.
Features
Integrated VCO with fixed ÷ 64 prescaler, phase/frequency detector, and reference
oscillator forming complete phase-locked loop
User selectable FM or FSK output
RSSI output with 70 dB dynamic range
Receiver enable pin for power saving
TQFP-32 package (5mm x 5mm)
Applications
Wireless mouse
Wireless amplifier/ speaker/ earphone/ microphone
Wireless car alarm system
Block Diagram
OSC
RXEN IN
32 31
OSC
OUT DO
30 29
VSS4 VCC2 RES RES
28 27 26 25
VCC1 1
OSC
RXIN 2
VSS1 3
LNA
OUT ⁴
LNA
VCO
PFD
÷ 64
BIAS
COMPARATOR/
AUDIO AMP
VSS2 5
MIX
IN
6
VSS3 ⁷
MIXER
IFAMP
RSSI ^DEMOD
LIMITER
MIX ₈
OUT
9 10 11 12 13 14 15 16
IFIN IFIN IF1 IF1 IF1 VREF VSS5 IF2
DEC DEC OUT IF
IN
24 QUAD
23 ^IF2
OUT
22 ^FM
OUT
21 RSSI
20 MUTE
19 VCC3
18 ^IF2
DEC
17
IF2
DEC
Pin Out Diagram
RES 25
RES 26
VCC2 27
VSS4 28
DO 29
OSCOUT 30
OSCIN 31
RXEN 32
22222111
43210987
16 IF2IN
15 VSS5
14 VREFIF
13 IF1OUT
12 IF1DEC
11 IF1DEC
10 IFIN
9 IFIN
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Rev.2.01 6/26/2003
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