參數資料
型號: TDA7421N
廠商: 意法半導體
英文描述: AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATIONS
中文描述: AM / FM調諧的汽車收音機及音響應用
文件頁數: 5/38頁
文件大?。?/td> 337K
代理商: TDA7421N
5/38
TDA7421N
(*) Pin function is user defined by software.
49
FM IF AMP2 IN -
FM 2
nd
IF amplifier negative input (differential -)
50
FM IF AMP2 IN +
FM 2
nd
IF amplifier positive input (differential +)
51
FM IF AMP1 OUT
FM 1
st
IF amplifier output
52
FM IF AMP IN -
FM 1
st
IF amplifier negative input (differential -)
53
FM IF AMP IN +
FM 1
st
IF amplifier positive input (differential +)
54
AM S-METER TC
AM S-meter time constant
55
AM MIX2 OUT
AM 2
nd
mixer output
56
RF VCC
RF positive supply
57
AM MIX2 IN -
AM 2nd mixer negative input (differential -)
58
AM MIX2 IN +
AM 2nd mixer positive input (differential +)
59
FM IF AGC IN
FM IF AGC input
60
MIX OUT -
FM/AM 1
st
mixer negative output (differential -)
61
MIX OUT +
FM/AM 1
st
mixer positive output (differential +)
62
AM AGC1 TC
AM 1
st
AGC time constant
63
AM AGC1 RF AMP
AM 1
st
AGC voltage output (to RF amplifier)
64
AM AGC1 PIN
AM 1
st
AGC current output (to antenna attenuation diodes)
N.
Name
Function
PIN DESCRIPTION
(Continued)
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TDA7421 AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS
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