1. Cadj is for volume controller calibration purpose, the osc frequency is 1MHz when Cadj=100pF.
2. The DC block coupling capacitor (1µF) placed in every input and output pin must care the polarity, the positive polarity side of cap must toward the
higher potential for proper operation. If not may cause abnormal pop noise during volume is changed.
V1.2
2
March 2010
PT2325
ORDER INFORMATION
Valid Part Number
PT2325-D
PT2325-X
Package Type
20 Pin, DIP, 300mil
20 Pin, SSOP, 150mil
Top Code
PT2325-D
PT2325-X
PIN CONFIGURATION
PIN DESCRIPTION
Pin Name I/O
Description
IN1
I Channel.1 input, AC coupling to audio source
IN2
I Channel.2 input, AC coupling to audio source
IN3
I Channel.3 input, AC coupling to audio source
VccA
- Power Supply for internal amplifier
REF
- 1/2 VccA reference bypassing, connect a capacitor to ground
GNDA
- Ground Pin for amplifier
MUTE
I Mute pin. Connect to the VccA active the mute function
IN4
I Channel.4 input, AC coupling to audio source
IN5
I Channel.5 input, AC coupling to audio source
IN6
I Channel.6 input, AC coupling to audio source
OUT6
O Channel.6 output, AC coupling to next stage
OUT5
O Channel.5 output, AC coupling to next stage
OUT4
O Channel.4 output, AC coupling to next stage
FREQ_ADJ - Oscillator Frequency adjustment for the volume controller
GNDV
- Ground Pin for the volume controller
VOLUME
I DC voltage input for the volume controller
VccV
- Power Supply input for the volume controller
OUT3
O Channel.3 output, AC coupling to next stage
OUT2
O Channel.2 output, AC coupling to next stage
OUT1
O Channel.1 output, AC coupling to next stage
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
V1.2
3
March 2010
PT2325
IMPORTANT NOTICE
Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements,
improvements, and other changes to its products and to discontinue any product without notice at any time.
PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No
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