SA1135 Datasheet, PDF (3/7 Pages) Silan Microelectronics Joint-stock – AM RADIO IC FOR DIGITAL TUNING SYSTEM

Note: *: Wide-band AGC OFF
PIN CONFIGURATIONS
20 19 18 17 16 15 14 13 12 11
SA1135
1 2 3 4 5 6 7 8 9 10
SA1135
PIN DESCRIPTIONS
Pin no.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin name
RFAGC
AGCIN1
RFAGCfilter
ANTdamping
GND1
AGCIN2
MIXOUT
VCC1
IFIN
IFOUT
DETIN
GND2
DETOUT
VCC2
SMfilter
SMOUT
IFAGCIN
VREG
OSC
OSCBUFOUT
Description
RFAGC
Detecting an undesired signal outside the RF band
Connected to capacitor
ANTdamping
Gnd of RFAGC, OSC, MIX
Detecting an undesired signal within the RF band
Out of mixer
Vcc of RFAGC, OSC, MIX
In of IF amp
Out of IF amp
In of detector
Gnd of IF, DET, SM
Out of detector
Vcc of IF ,DET ,SM
Connected to resistor and capacitor
Out of s-meter
In of IF AGC
Regulator voltage
Osc
Out of osc buffer
FUNCTION DESCRIPTION
1. Double –balanced differential MIX can prevent spurious interference and IF interference.
2. Oscillation with ALC output is stabilized at a low level (380mVrms) for varactor diode.
3. IF amplifier and IF AGC
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.0 2005.02.01
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