E-TDA7400DTR STMicroelectronics, E-TDA7400DTR Datasheet - Page 9

• Manufacturer Part Number: E-TDA7400DTR
• Description: IC PROCESSOR CAR SIGNAL 28SOIC
• Manufacturer: STMicroelectronics
• Type: Car Signal Processorr

Specifications of E-TDA7400DTR

• Applications: Automotive Audio
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5050-2

NOISE BLANKER PART
ELECTRICAL CHARACTERISTICS (continued)
(c) = by design/characterization functionally guaranteed through dedicated test mode structure
V
V
V
V
V
Symbol
internal 2nd order 140kHz high pass filter
programmable trigger threshold
trigger threshold dependent on high frequency
noise with programmable gain
additional circuits for deviation and field-
strength dependent trigger adjustment
TR
TRNOISE
SR
RECT DEV
V
RECTADJ
RECT FS
RECT
T
PEAK
S
Trigger Threshold
Noise Controlled Trigger
Threshold
Rectifier Voltage
deviation dependent
rectifier Voltage
Fieldstrength Controlled
Rectifier Voltage
Suppression Pulse
Duration
Noise Rectifier
discharge adjustment
Noise Rectifier Charge
Parameter
5)
2)
3)
4)
0) 1)
6)
meas. with V
meas. with V
V
V
V
means. with
V
(75KHz dev.)
means. with
V
V
(fully mono)
Signal HOLDN
in Testmode
Signal PEAK in
Testmode
Signal PEAK in
Testmode
MPX
MPX
MPX
MPX
MPX
LEVEL
Test Condition
= 0mV
= 50mV; f = 150KHz
= 200mV; f = 150KHz
= 800mV
= 0mV
<< V
SBL
PEAK
PEAK
= 0.9V
= 1.5V
very low offset current during hold time due to
opamps wMOS inputs
four selectable pulse suppression times
programmable noise rectifier charge/discharge
current
NRD = 00
NRD = 01
NRD = 10
NRD = 11
NBT = 111
NBT = 110
NBT = 101
NBT = 100
NBT = 011
NBT = 010
NBT = 001
NBT = 000
NCT = 00
NCT = 01
NCT = 10
NCT = 11
NRD
OVD = 11
OVD = 10
OVD = 01
OVD = 00
FSC = 11
FSC = 10
FSC = 01
FSC = 00
BLT = 00
BLT = 10
BLT = 01
BLT = 00
PCH = 0
PCH = 1
6)
= 00
7)
7)
6)
6)
6)
6)
Min.
TBD
TBD
TBD
TBD
0.5
1.5
2.2
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)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
0.9(off)
0.9(off)
Typ.
25.5
260
220
180
140
0.9
1.7
2.5
1.2
2.0
2.8
1.4
1.9
2.4
0.3
0.8
1.3
2.0
30
35
40
45
50
55
60
65
38
32
22
10
20
Max.
TBD
TBD
TBD
TBD
1.3
2.1
2.9
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)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
(c)
TDA7400D
mV/ s
mV/ s
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
V/ms
V/ms
V/ms
V/ms
Unit
V
V
V
V
V
V
V
V
V
V
V
OP
OP
OP
OP
s
s
s
s
OP
OP
OP
OP
OP
OP
OP
OP
OP
OP
OP
OP
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