DRV604 Datasheet, PDF (14/21 Pages) Texas Instruments – DirectPath™ 2Vrms Line Driver and HP Amp With Adjustable Gain

DRV604
SLOS659 – JANUARY 2010
www.ti.com
APPLICATION CIRCUIT
LD_L_IN
C11
1
2
10uF
R11
10.0k
LD_L_OUT
R12
33.0k
C12
1
2
330pF
R13
1
2
GND
33.0k C13
22pF
EN_LD
GND
C3
1
2
1uF
GND
U1
1
+LD_L
2 _{-LD_L}
3
OUT_LDL
4 _AGND
5 _{EN_LD}
6
PVSS_LD
7
CN_LD
C1
2
1
1uF
28
+LD_R
-LD_R ²⁷
26
OUT_LDR
Ex_UVP ²⁵
PGND ²⁴
23
PVDD_LD
CP_LD ²²
C15
2
1
GND
330pF
R16
2
1
C16
22pF
33.0k
C14
2
1
10uF
R14
10.0k
LD_L_IN
R15
33.0k
LD_L_OUT
R3
1
2
22k
C5
C9
1uF GND 470pF
R1
10k
R2
3.90k
VSUP
GND
EN_HP
C4
1
2
1uF
GND
8
CN_HP
9 _{PVSS_HP}
10 _{EN_HP}
11
AGND
CP_HP ²¹
PVDD_HP ²⁰
PGND ¹⁹
18
NC
C6
1uF
GND
R4
2
1
1R
C7
10uF
+3.3V
C8
1uF
GND
GND
HP_L_OUT
HP_L_IN
R21
10.0k
C21
1
2
10uF
GND
30.0k
R22
1
33.0k
C23
22pF
2
R23
2
1
C22
330pF
GND
12 _{OUT_HPL}
13
-HP_L
14
+HP_L
PDRV604
C2
1
2
2.2uF
OUT_HPR ¹⁷
-HP_R ¹⁶
15
+HP_R
C26
22pF R26
2
1
33.0k
C25
1
2
GND
330pF
R25
30.0k
HP_R_OUT
R24
10.0k
C24
2
1
10uF
HP_R_IN
Single-Ended Input and Output with 3.3x Gain in the Line Section, 3x Gain in the Headphone Section.
AC-Coupling Input with a High Pass Pole of 1.6Hz, 2^nd Order Low Pass Filter at 50kHz.
14
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