參數(shù)資料
型號: TDA7719
廠商: STMICROELECTRONICS
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28
封裝: ROHS COMPLIANT, MO-153AC, TSSOP-28
文件頁數(shù): 7/46頁
文件大?。?/td> 590K
代理商: TDA7719
TDA7719
Description
Doc ID 13698 Rev 4
Figure 3.
QD and FD configuration of QD4/FD4
4.1.2
Direct path
The input pins can be configured as direct path mode by setting Byte1 Bit5~Bit7. In direct
path mode the input pins are connected to dedicated mono fader directly, all the filters and
volume are bypassed. Below is described the assignment of the input pins and output fader
in direct path mode:
Pin5/QD2L
--> OUTLF
Pin6/QD2R
--> OUTRF
Pin7/QD3L
--> OUTLR
Pin9/QD3R
--> OUTRR
Pin10/FDL+_QD4L --> OUTL2
Pin13/FDR+_QD4R--> OUTR2
Note:
1
The configurations CFG2, CFG3 and CFG5 are not recommended in direct path mode.
Because in these 3 configurations SE4L/MD1+ and SE5R/MD2+ are connected to OUT2_L
and OUT2_R fader separately. In this case left and right channel of OUT2 belongs to
different input sources.
2
If the direct path is chosen, the input pins have to be used as single ended pins. In case of
differential inputs the ground or minus pins must be connect to GND by AC short.
3
Inputs in direct path mode are also selectable with front and rear selector.
+
-
1
2
FULL DIFFERENTIAL
100k
FD4L+
FD4L-
+
-
1
2
100k
FD4R+
FD4R-
+
-
1
2
QUASI DIFFERENTIAL
100k
QD4L
OUTL
OUTR
OUTL
OUTR
QD4G
+
-
1
2
100k
QD4G
QD4R
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