Panasonic AN7289NSC Datasheet
ICs for FM/AM Tuner
AN7289NSC
FM-FE+AM IC for car radio
■ Overview
The AN7289NSC is an IC having FM-FE+AM
functions for car radio. A tuner block of car radio
can be constructed by combination of this IC and
the AN7293NSC / NFBQ.
■ Features
• A less number of electrolytic capacitors is required
(3 capacitors reduction compared with our conventional IC)
• AM: Practical sensitivity is improved by 2 dB by
ATC
• AM: Strong input characteristics is improved by
2-loop AGC function
■ Applications
• Car radios
■ Block Diagram
Unit: mm
32 17
116
17.81±0.3
0.35±0.1
SSOP032-P-0375
1.01.23
Seating plane
0.1±0.1
7.2±0.3
9.3±0.3
0.3
0.15
2.0±0.2
0.9
32
1
FE
OSC
GND2
31
AM
ATC
2
30
AM
OSC
3
29
AM
IF-AGC
4
28
FM
AGC
5
AM
det.
27
6
CC
V
26
25
FM/AM SW
AM
SSC
7
8
24
FM
mix.
AM.S-meter
9
23
10
22
RF-AGC
AM
IF-amp.
11
AM
21
12
GND1
20
13
19
14
18
FM
IF-amp.
15
17
AM
mix.
16
1
AN7289NSC ICs for FM/AM Tuner
■ Pin Description
Pin No. Description
1 FM-keyed-AGC input
2 AM-AF output / LO setting
3 AM-ATC input
4 AM-IF level detection
5 AM detection output
6V
CC1
7 AM-IF counter output / DX / LO SW
8 AM-SD output
9 AM-signal meter output
10 FM-IF output
11 AM-IF output
12 GND1
13 SSC
14 AM-RF level detection
15 AM-WAGC detection / DX setting
16 AM-IF input
17 AM-mix. output
Pin No. Description
18 FM-IF input
19 AM-RF gain control
20 AM-mix. input
21 FM-PIN-diode driver
22 AM-OSC coil pin
23 FM-mix. output (2)
24 FM-mix. output (1)
25 FM-PIN-diode driver
26 FM-mix. input
27 V
/ FM / AM SW
CC2
28 FM-AGC output
29 FM-OSC buffer output
30 AM-OSC buffer output / FE-AGC
sensitivity setting
31 GND2
32 FM-OSC coil pin
■ Absolute Maximum Ratings
Parameter Symbol Rating Unit
Supply voltage V
Supply current I
2
Power dissipation
Operating ambient temperature
Storage temperature
Note)*1:Except for the power dissipation, operating ambient temperature, and storage temperature, all ratings are for Ta = 25°C.
2: Ta = 80°C
*
*
*
1
*
CC
CC
P
D
1
T
opr
T
stg
9.1 V
56 mA
380.2 mW
−35 to +80 °C
−55 to +125 °C
■ Recommended Operating Range
Parameter Symbol Range Unit
Supply voltage V
CC
7.2 to 9.0 V
2
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