Texas Instruments DRV601EVM, Руководство пользователя

Страница: 19 / 25

www.ti.com
7 Related Documentation from Texas Instruments
8 Design Documentation
8.1 DRV601EVM Schematic
R12
1 2
R18
10 R
1 2
C17
330 pF
2
1
R19
10 R
1 2
C18
330 pF
2
1
Shutdown
J11
Phono socket
2
3
4
1
J12
Phono socket
2
3
4
1
GND
GND
GND
GND
U1
DRV601
C1P
1
PGND
2
C1N
3
NC
4
PVSS
5
N
C
6
S
V
S
S
7
N
C
8
O
U
T
L
9
S
V
D
D
1
0
OUTR
11
NC
12
INL
13
/SDR
14
INR
15
N
C
1
6
S
G
N
D
1
7
/S
D
L
1
8
P
V
D
D
1
9
N
C
2
0
P
o
w
e
rP
A
D
2
1
GND
C13
2 1
GND
C14
2
1
C12
1 F m
2
1
GND
GND
C15
2 1
C16
1 F m
2 1
Layout note:
Do not ground the powerpad - keep it floating
Place C12-C13-C14 close to U10
Place R14-C19 close to pin 15
Place R15-C20 close to pin 13
Gain: = R16/R11 = R17/R12 = 2.0
Low Pass filter: 40kHz 2nd Order Butterworth
High Pass filter: R11-C15 = R12-C16 aprox. 10Hz
Line Driver
Input
Output
C19
33 pF
2
1
R13
1
2
C20
33 pF
2
1
+3.3 V
+3.3 V
1.8V to 4.5V
Power supply
C11
2
1
GND
SW1
Switch
1
4
2
3
R14
1 2
J21
Phono socket
2
3
4
1
R15 47 k W
1 2
J22
Phono socket
2
3
4
1
GND
GND
R16
30 k
W
1
2
R11
15 k
W
1 2
R17
30 k
W
1
2
J10
Header
1
2
GND
1 F m
1 F
m
47 k W
47 k
W
15 k W
1 F
m
1 F m
Related Documentation from Texas Instruments
For detailed descriptions of the integrated circuits used in the design of the DRV601EVM, see data sheet
DirectPath™ Stereo Line Driver, Adjustable Gain ( SLOS553 ).
This section includes a schematic for the DRV601EVM, the bill of materials, and the PCB design
specifications.
SLOU215 – January 2008 DRV601EVM 19
Submit Documentation Feedback