DRV604 Datasheet, PDF (3/21 Pages) Texas Instruments – DirectPath™ 2Vrms Line Driver and HP Amp With Adjustable Gain

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DRV604
SLOS659 – JANUARY 2010
PIN FUNCTIONS (continued)
PIN
NAME
PWP NO.
–HP_R
16
OUT_HPR
17
NC
18
PGND
19
PVDD_HP
20
CP_HP
21
CP_LD
22
PVDD_LD
23
PGND
24
Ex_UVP
25
OUT_LDR
26
–LD_R
27
+LD_R
28
FUNCTION ⁽¹⁾
DESCRIPTION
I
Negative input, Headphone Right
O
Output, Headphone Right
No connect
P
Charge Pump Power Ground, Headphone
P
Headphone Supply Voltage, connect to positive supply, internally connected to pin 23
I/O
Charge Pump Flying Capacitor Positive connection, Headphone
I/O
Charge Pump Flying Capacitor Positive connection, Line Driver
P
Line Driver Supply Voltage, connect to positive supply, internally connected to pin 20
P
Charge Pump Power Ground, Line Driver
I
External Under Voltage Protection
O
Output, Line Driver Right
I
Negative input, Line driver Right
I
Positive input, Line driver Right
SYSTEM BLOCK DIAGRAM
OpAmp
LD
Enable
Control LD
Thermal
Protection
Enable
Control HP
OpAmp
HP
Short-Circuit
Protection
Click & Pop
Suppression
Internal
UVP
Click & Pop
Suppression
Short-Circuit
Protection
OpAmp
LD
Charge
Pump LD
External
UVP
Charge
Pump HP
OpAmp
HP
ORDERING INFORMATION⁽¹⁾
T_A
–40°C–85°C
PACKAGE
DRV604PWP
DESCRIPTION
28-Pin
(1) For the most current package and ordering information, see the
Package Option Addendum at the end of this document, or see the
TI Web site at www.ti.com.
Copyright © 2010, Texas Instruments Incorporated
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