CM6206 Datasheet, PDF (7/35 Pages) C-Media Electronics – High Integrated USB Audio I/O Controller

CM6206
High Integrated USB Audio I/O Controller
3.2 CM6206 LQFP 48 PIN
Pin # Symbol Type
Description
Power down switch control (for PMOS polarity)
1
PDSW
DO 0: normal mode
1: power down mode
2
XI
DI 12MHz crystal, or oscillator input
3
XO
DO 12MHz crystal output
4
DVSS1
P Digital ground
5
SDAT
DIO External MCU serial bus data pin
6
SCLK
DI External MCU serial bus clock pin
7
TEST
DI Test mode select pin; pull low in normal operation
External MCU clock pin; clock frequency is programmable
8
MCLK
DO (12MHz, 6MHz, 3MHz, 1.5MHz)
Default is 1.5 MHz
External MCU interrupt pin (active L)
When internal register address 0 ~ 3 or external serial EEPROM is
9
MINT
DO
accessed,
MINT is set low; after MCU read, MINT is reset to H
10
GPIO1
DIO GPIO pin #1
11
LEDO
DO LED for operation; output H for power on; toggling for data transmit
12
LEDR
DO LED for mute recording indication; output H when recording is muted
13
PHONES
Phone jack sense pin for line out Tri-state; an internal register bit will be
DI
set when activated (active H)
14
CS
DO EEPROM interface chip select
15
SK
DO EEPROM interface clock
16
DR
DO EEPROM interface data read
17
DW
DI EEPROM interface data write
18
USBDP
AIO USB data D+
19
USBDM
AIO USB data D-
20
REGV
AO 3.3V reference output for internal 5  3.3V regulator
21
DVDD1
22
AVSS3
23
MICL
P 5V power supply to internal regulator
P Analog ground
AI Microphone input left channel
24
MICR
AI Microphone input right channel
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