TDA7411 ST Microelectronics, TDA7411 Datasheet - Page 20

• Manufacturer Part Number: TDA7411
• Description: ADVANCED CAR SIGNAL PROCESSOR
• Manufacturer: ST Microelectronics

ELECTRICAL CHARACTERISTICS (continued)
TDA7411
(c) = by design/characterization functionally guaranteed through dedicated test mode structure
0) All Thresholds are measured using a pulse with TR =2 s, TH
Figure 14. Timing
1) NBT represents the Noiseblanker Byte bits D
2) NAT represents the Noiseblanker Byte bit pair D
3) OVD represents the Noiseblanker Byte bit pair D
4) FSC represents the Fieldstrength Byte bit pair D
5) BLT represents the Speaker RR Byte bit pair D
6) NRD represents the Configuration-Byte bit pair D
7) PCH represents the Stereodecoder-Byte bit D
8) MPNB represents the HighCut-Byte bit D
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V
V
V
Symbol
SR
V
voltage.
RECT DEV
RECT FS
RECTADJ
ADJMP
T
PEAK
S
deviation dependent
rectifier Voltage
Fieldstrength Controlled
Rectifier Voltage
Suppression Pulse
Duration
Noise Rectifier discharge
adjustment
Noise Rectifier Charge
Noise Rectifier adjustment
through Multipath
Parameter
5)
6)
3)
4)
8)
D97AU636
V IN
DC
7
and the Fieldstrength-Byte D
2
means. with
V
(75KHz dev.)
means. with
V
V
(fully mono)
Signal HOLDNin Testmode
Signal PEAK in Testmode
Signal PEAK in Testmode
Signal PEAK in Testmode
, D
5
V OP
7
for the noise rectifier charge-current adjustment
MPX
MPX
LEVE
, D
1
4
7
0
1
, D
, D
, D
, D
for the noise blanker trigger threshold
T R
6
0
3
6
for the blanktime adjustment
= 500mV
= 0mV
L << V
0
for the fieldstrength control
for the noise controlled triggeradjustment
for the over deviation detector
for the noise rectifier discharge-adjustment
T HIGH
SBL
Test Condition
IGH
= 2 s and T
7
for the noise rectifier multipath adjustment
T F
F
= 10 s. The repetition rate must not increase the PEAK
MPNB = 00
MPNB = 01
MPNB = 10
MPNB = 11
NRD = 00
NRD = 01
NRD = 10
NRD = 11
PCH = 0
PCH = 1
OVD = 11
OVD = 10
OVD = 01
OVD = 00
FSC = 11
FSC = 10
FSC = 01
FSC = 00
BLT = 00
BLT = 10
BLT = 01
BLT = 00
Time
7)
7)
6)
6)
6)
6)
8)
8)
8)
8)
Min.
0.5
0.9
1.7
2.5
0.5
0.9
1.7
2.1
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
0.9(off)
0.9(off)
Typ.
25.5
1.2
2.0
2.8
1.4
1.9
2.4
0.3
0.8
1.3
2.0
0.3
0.5
0.7
0.9
38
32
22
10
20
Max.
1.3
1.5
2.3
3.1
1.3
1.5
2.3
3.1
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
mV/ s
mV/ s
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
V/ms
Unit
V
V
V
V
V
V
V
V
OP
OP
OP
OP
s
s
s
s