TDA7719 STMicroelectronics, TDA7719 Datasheet - Page 14

• Manufacturer Part Number: TDA7719
• Description: IC AUDIO PROCESSOR CAR 28-TSSOP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr
• Series: -r

Specifications of TDA7719

• Applications: Radio
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Description
Note:
14/46
With different input configuration, the input source can be selected with input selector
(Byte0/1 Bit0~Bit2). The following matrix defines the selector configuration of different input
sources dependant on the configuration bits.
Table 7.
In each configuration, only the light grey cells are allowed. The dark grey cells are not
allowed.
MD1/MD2 selection is defined by extra bit – ‘MD1/2 selection’ in I
Byte0/1).
The input stage can be configured to 0dB or 3dB gain with I
allows up to 2Vrms input signal level, while with 3dB gain, the internal signal will start to clip
when input signal level is higher than 1.414Vrms.
The Pin10~Pin13 can be configured as full differential input stage or quasi-differential input.
When it is configured as quasi-differential input, both Pin11 and Pin12 are used as the QD
common input pins. These two pins must be connected together externally in application. In
this case the input impedance of QD4 common is reduced to 50k
right input). The diagram below shows both QD and FD configuration of QD4/FD4.
Selector Bits
Bit2~Bit0)
(Byte0/1
CFG0
CFG1
CFG2
CFG3
CFG4
CFG5
CFG6
CFG7
Selector configuration matrix
QD1
QD1
QD1
SE1
SE1
SE1
SE1
000
IN0
NA
QD2
QD2
QD2
SE3
SE3
SE3
SE3
SE3
001
IN1
Doc ID 13698 Rev 4
QD3
QD3
QD3
QD3
QD3
QD3
QD3
QD3
010
IN2
MD1/2
QD4
QD4
011
IN3
NA
FD
NA
FD
FD
SE2
SE2
SE2
SE2
SE2
100
IN4
NA
NA
NA
2
C bus. The 0dB configuration
Ω
2
C control table (Bit3 of
SE4
SE4
101
IN5
NA
NA
NA
NA
NA
NA
(half of QD4 left and
SE5
SE5
110
IN6
NA
NA
NA
NA
NA
NA
TDA7719
MD3
111
IN7
NA
NA
NA
NA
NA
NA
NA