AM/FM 1 CHIP TUNER SYSTEM IC - TGS
Description
TIGER ELECTRONIC CO.
,LTD
AM/FM 1 CHIP TUNER SYSTEM IC (1.
5V USE) TA 7792
G ENERAL DESCRI PTI O N
The TA7792 is AM/FM 1 chip tuner system (FM FRONT END+AM/FM IF) ICs, w h i c h i s d e s i g n e d f o r l o w v o l t a g e o p e r a t i o n ( 1 .
5 V, 3 .
0 V ) .
T h o s e a r e e s p e c i a l l y suitable for stereo headphone radio and radio cassette recorder equipments.
These item can realize the low power dissipation and few external parts.
FEATURES
AM detector coil-less FM mixer coil-less Switchover between AM/FM mode is possible with one-make switch.
Operating supply voltage range: V c c ( o p r ) = 0 .
9 5 ~ 5 V ( Ta = 2 5 ° C )
E x c e l l e n t l o w s u p p l y c u r r e n t ( V c c = 1 .
5 V, Ta = 2 5 ° C ) I c c ( A M ) = 1 .
2 m A ( Ty p .
) I c c ( F M ) = 4 .
0 m A ( Ty p .
)
BLOCK DIAGRAM
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PIN CONNECTION
FM MIX AM/FM SW FM OSC AM OSC AM MIX AM AGC AM IF AF 1 2 3 4 5 6 7 8 16 15 14 13 FM RF GND FM IF1 AM RF FM IF2 GND Vcc FM DET
TA7792 D7792
D7792
12 11 10 9
TERMINAL VO LTAGE:
Te r m i n a l v o l t a g e a t n o s i g n a l w i t h t e s t c i r c u i t ( V c c = 1 .
5 V, Ta = 2 5 ° C ) Pin No.
SymPin Name bol FM RF OUT V1 Vcc1 V2 FM OSC V3 AM OSC V4 AM MIX OUT V5 AM AGC V6 AM IF IN V7 AF OUT V8 Ty p .
AM FM 1.
5 1.
5 1.
5 1.
5 1.
5 1.
5 1.
5 0.
8 1.
4 1.
5 0.
6 0.
6 Unit V V V V V V V V 9 10 11 12 13 14 15 16 Pin No.
SymPin Name bol FM DET V9 Vcc2 V10 GND2 V 11 FM IF IN V12 AM RF IN V13 FM MIX OUT V14 GND1 V15 FM RF IN V16 Ty p .
Unit AM FM 1.
5 1.
5 V 1.
5 1.
5 V 0 0 V 0.
7 V 0.
7 V 0.
8 V 0 0 V 0.
7 V
1 2 3 4 5 6 7 8
MAXIMUM RATINGS ( Ta = 2 5 ° C )
Characteristics S u p p l y Vo l t a g e Power Dissipation O p e r a t i n g Te m p e r a t u r e St o r a g e Te m p e r a t u r e Symbol Vcc PD To p r Ts t g Rating 5 750(DIP) 350(SOP) -25~75 -55~150 Unit V mW °C °C
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,LTD www.
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