TDA7400 ST Microelectronics, TDA7400 Datasheet - Page 11

• Manufacturer Part Number: TDA7400
• Description: ADVANCED CAR SIGNAL PROCESSOR
• Manufacturer: ST Microelectronics

Figure 3. Fieldstrength Controlled Trigger Adjustment
Multipath Detector
ELECTRICAL CHARACTERISTICS (continued)
Quality Detector
G
Symbol
Symbol
Internal 19kHz band pass filter
Programmable band pass and rectifier gain
G
I
I
RECTMP
f
DISMP
CHMP
CMP
BPMP
A
Center Frequency of Multipath-
Bandpass
Bandpass Gain
Rectifier Gain
Rectifier Charge Current
Rectifier Discharge Current
Multipath Influence Factor
Parameter
V PEAK
»3V
Parameter
NOISE
noisy signal
bit D
bit D
MONO
stereodecoder locked on Pilottono
bits D
bits D
bits D
bits D
bits D
bits D
bits D
bits D
bit D
bit D
7
7
D97AU650
High-Cut byte +
Fieldstrength byte +
5
5
2
2
2
2
7
7
7
7
configuration byte = 0
configuration byte = 1
, D
, D
, D
, D
, D
, D
, D
, D
Test Condition
Test Condition
1
1
1
1
6
6
6
6
ATC_SB OFF (11)
configuration byte = 00
configuration byte = 10
configuration byte = 01
configuration byte = 11
configuration byte = 00
configuration byte = 01
configuration byte = 10
configuration byte = 11
STEREO
two pin solution fully independent usable for
external programming
selectable internal influence on Stereoblend
good signal
2.4V(00)
1.9V(01)
1.4V(10)
00
01
10
11
Min.
Min.
0.5
E’
0.9V
Typ.
Typ.
0.85
1.00
1.15
7.6
4.6
0.5
1.0
0.7
19
12
16
18
off
6
0
1
Max.
Max.
1.5
TDA7400
Unit
KHz
Unit
mA
dB
dB
dB
dB
dB
dB
dB
dB
11/28
A
A