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| 型号： | TDA7411 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44 |
| 封装： | 10 X 10 MM, 1.40 MM HEIGHT, TQFP-44 |
| 文件页数： | 13/43页 |
| 文件大小： | 617K |
| 代理商： | TDA7411 |
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Obsolete
Product(s)
- Obsolete
Product(s)
TDA7411
20/43
(c) = by design/characterization functionally guaranteed through dedicated test mode structure
0) All Thresholds are measured using a pulse with TR =2
s, THIGH = 2s and TF = 10s. The repetition rate must not increase the PEAK
voltage.
Figure 14. Timing
1) NBT represents the Noiseblanker Byte bits D2, D0 for the noise blanker trigger threshold
2) NAT represents the Noiseblanker Byte bit pair D4, D3 for the noise controlled triggeradjustment
3) OVD represents the Noiseblanker Byte bit pair D7, D6 for the over deviation detector
4) FSC represents the Fieldstrength Byte bit pair D1, D0 for the fieldstrength control
5) BLT represents the Speaker RR Byte bit pair D7, D6 for the blanktime adjustment
6) NRD represents the Configuration-Byte bit pair D1, D0 for the noise rectifier discharge-adjustment
7) PCH represents the Stereodecoder-Byte bit D5 for the noise rectifier charge-current adjustment
8) MPNB represents the HighCut-Byte bit D7 and the Fieldstrength-Byte D7 for the noise rectifier multipath adjustment
VRECT DEV deviation dependent
rectifier Voltage 3)
means. with
VMPX = 500mV
(75KHz dev.)
OVD = 11
0.5
0.9(off)
1.3
VOP
OVD = 10
0.9
1.2
1.5
VOP
OVD = 01
1.7
2.0
2.3
VOP
OVD = 00
2.5
2.8
3.1
VOP
VRECT FS Fieldstrength Controlled
Rectifier Voltage 4)
means. with
VMPX = 0mV
VLEVEL << VSBL
(fully mono)
FSC = 11
0.5
0.9(off)
1.3
V
FSC = 10
0.9
1.4
1.5
V
FSC = 01
1.7
1.9
2.3
V
FSC = 00
2.1
2.4
3.1
V
TS
Suppression Pulse
Duration 5)
Signal HOLDNin Testmode
BLT = 00
38
s
BLT = 10
32
s
BLT = 01
25.5
s
BLT = 00
22
s
VRECTADJ Noise Rectifier discharge
adjustment 6)
Signal PEAK in Testmode
NRD = 00 6)
(c)
0.3
(c)
V/ms
NRD = 01 6)
(c)
0.8
(c)
V/ms
NRD = 10 6)
(c)
1.3
(c)
V/ms
NRD = 11 6)
(c)
2.0
(c)
V/ms
SRPEAK
Noise Rectifier Charge
Signal PEAK in Testmode
PCH = 0 7)
(c)
10
(c)
mV/
s
PCH = 1 7)
(c)
20
(c)
mV/
s
VADJMP
Noise Rectifier adjustment
through Multipath 8)
Signal PEAK in Testmode
MPNB = 00 8)
(c)
0.3
(c)
V/ms
MPNB = 01 8)
(c)
0.5
(c)
V/ms
MPNB = 10 8)
(c)
0.7
(c)
V/ms
MPNB = 11 8)
(c)
0.9
(c)
V/ms
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VOP
VIN
DC
TR
THIGH
TF
Time
D97AU636
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