TDA7403D STMicroelectronics, TDA7403D Datasheet - Page 12

• Manufacturer Part Number: TDA7403D
• Description: IC PROCESSOR BASIC SIGNAL SO-20
• Manufacturer: STMicroelectronics
• Type: Car Signal Processorr

Specifications of TDA7403D

• Applications: Automotive Systems
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7403
Figure 10. Trigger Threshold vs. V
Figure 11. Deviation Controlled Trigger Ad-
Figure 13. Block diagram of the stereo decoder
12/25
V PEAK
(V
MPX
OP
2.8
2.0
1.2
0.9
D97AU649
)
100K
20
justment
D98AU952
32.5
8 STEPS
3.5 ... 11dB
STEP 2.5dB
INGAIN
45
65mV
30mV
75
VTH
DETECTOR OFF (11)
NOISE BLANKER
MIN. TRIG. THRESHOLD
LP 80KHz
4.th ORDER
PILOT-DET.
INFILTER
PEAK
PLL +
STEREO
DEVIATION(KHz)
HOLDN
00
01
10
0.9V
F19
F38
- PLOT CANC
- ROLL-OFF COMP.
- LP 25KHz
D97AU648
DEMODULATOR
Figure 12. Fieldstrength Controlled Trigger
V PEAK
»3V
SB CONTROL
NOISE
1.5V
Adjustment
noisy signal
NOISE CONTROLLED
TRIG. THRESHOLD
LEVEL INTERN
REF 5V
VSBL
MONO
t=50 or 75 s
D98AU863
DEEMPHASIS
V PEAK(V)
+ HIGHCUT
CONTROL
D
260mV(00)
220mV(01)
180mV(10)
140mV(11)
HC
ATC_SB OFF (11)
STEREO
A
LP 2.2KHZ
1.th ORDER
GAIN 0..10dB
LEVEL INPUT
good signal
FM_L
FM_R
2.3V(00)
1.8V(01)
1.3V(10)
VHCCH
VHCCL
LEVEL
E'
0.9V