参数资料
型号: TDA7403D
厂商: STMICROELECTRONICS
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO20
封装: SO-20
文件页数: 4/25页
文件大小: 232K
代理商: TDA7403D
65mV
30mV
8 STEPS
NOISE CONTROLLED
TRIG. THRESHOLD
MIN. TRIG. THRESHOLD
260mV(00)
220mV(01)
180mV(10)
140mV(11)
0.9V
VTH
1.5V
VPEAK(V)
D97AU648
Figure 10. Trigger Threshold vs. VPEAK
VPEAK
(VOP)
D97AU649
20
DEVIATION(KHz)
0.9
1.2
2.0
2.8
DETECTOR OFF (11)
32.5
45
75
10
01
00
Figure 11. Deviation Controlled Trigger Ad-
justment
2.3V(00)
0.9V
VPEAK
E'
D98AU863
1.8V(01)
1.3V(10)
MONO
STEREO
noisy signal
good signal
ATC_SB OFF (11)
NOISE
3V
Figure 12. Fieldstrength Controlled Trigger
Adjustment
INGAIN
3.5 ... 11dB
STEP 2.5dB
INFILTER
LP 80KHz
4.th ORDER
DEMODULATOR
- PLOT CANC
- ROLL-OFF COMP.
- LP 25KHz
PLL +
PILOT-DET.
F19
NOISE BLANKER
F38
STEREO
HOLDN
SB CONTROL
DEEMPHASIS
+ HIGHCUT
t=50 or 75
s
REF 5V
VSBL
LEVEL INTERN
HC
CONTROL
VHCCH
VHCCL
D
A
LEVEL INPUT
LP 2.2KHZ
1.th ORDER
LEVEL
FM_L
FM_R
MPX
100K
D98AU952
GAIN 0..10dB
Figure 13. Block diagram of the stereo decoder
TDA7403
12/25
相关PDF资料
PDF描述
TDA7403DTR SPECIALTY CONSUMER CIRCUIT, PDSO20
TDA7404DTR 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
TDA7404D 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
TDA7405TR SPECIALTY CONSUMER CIRCUIT, PQFP44
TDA7405 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44
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