EUA5212
Pin Configurations
Package
Pin Configurations (Top View)
TSSOP-24 with a Thermal
Pad exposure on the bottom
of the package
Pin Description
PIN
PIN
11
I/O
DESCRIPTION
BYPASS
GAIN0
GAIN1
Tap to voltage divider for internal mid-supply bias generator
2
I
I
Bit 0 of gain control
3
Bit 1 of gain control
1,12
GND
LHPIN
LIN
Ground connection for circuitry. Connected to thermal pad.
13,24
6
I
I
Left channel headphone input, selected when
is held high.
SE/BTL
Common left input for fully differential input. AC ground for single-ended
10
inputs.
LLINEIN
LOUT+
LOUT-
5
4
9
I
Left channel line input, selected when
is held low.
SE/BTL
O
Left channel positive output in BTL mode and positive output in SE mode.
Left channel negative output in BTL mode and high-impedance in SE mode.
The input for PC Beep mode. PC-BEEP is enabled when a > 1-V (peak-to-peak)
square wave is input to PC-BEEP or PCB ENABLE is high.
O
PC-BEEP
14
I
I
is the input MUX control input. When the
terminal is held
HP/LINE
HP/LINE
high, the headphone inputs (LHPIN or RHPIN [6, 20]) are active. When the
17
HP/LINE
terminal is held low, the line BTL inputs (LLINEIN or RLINEIN [5,
HP/LINE
23]) are active.
PVDD
RHPIN
7,18
20
I
I
Power supply for output stage.
Right channel headphone input, selected when
is held high
SE/BTL
Common right input for fully differential input. AC ground for single-ended
RIN
8
I
inputs.
RLINEIN
ROUT+
ROUT-
23
21
16
I
O
O
Right channel line input, selected when
is held low.
SE/BTL
Right channel positive output in
Right channel negative output in
mode and positive output in SE mode.
mode and high-impedance in SE mode.
When held low, this terminal place the entire device, except PC-BEEP detect
circuitry, in shutdown mode.
22
15
19
I
I
I
SHUTDOWN
SE/BTL
VDD
Input and output MUX control. When this terminal is held high, the LHPIN or
RHPIN and SE output is selected. When this terminal is held low, the LLINEIN
or RLINEIN and
output are selected.
Analog VDD input supply. This terminal needs to be isolated from PVDD to
achieve highest performance.
DS5212 Ver 1.7 May. 2005
3
EUTECH [ EUTECH MICROELECTRONICS INC ]
