CM6533-N Datasheet, PDF (14/60 Pages) C-Media Electronics – USB 2.0 Full-Speed compliant

CM6533,CM6533N,CM6533X1,CM6533DH
USB Audio Chip
4.5 Pin Description
Pin #
Symbol
I/O
7
USB_DP
AIO
8
USB_DM
AIO
9
DVDD33
10
DVDD18
11
DVDD50
22
AVDD36
23
AVDD50
24
AV42_DA
25
AV36_DAL
31
AV36_DAR
6
VSS
12
VSS
42
VSS
13
AGND
21
AGND
27
AGND_DAL
29
AGND_DAR
AO
AO
PWR
AO
PWR
AO
AO
AO
GND
GND
GND
GND
GND
GND
GND
18
MIC_SWOUT
AO
15
MICL
AI
19
MICR_RING2
AI
16
MBIASL
AO
20 MBIASR_SLEEVE
AO
17
VAG
AO
26
LOUTL
AO
28
LOCOM
AO
30
LOUTR
AO
14
VOLADJ
AI
36
SPDIF_O
DO
1
GPIO_0
DIO
48
GPIO_1
DIO
47
GPIO_2
DIO
Description
USB2.0 BUS Interface
USB 2.0 data positive (USB D+ signal).
USB 2.0 data negative (USB D- signal).
Power/Ground
Regulator 3.3V output, drive capacity 10mA.
Regulator 1.8V output, no current drive capacity.
5V digital power for 5/3.3/1.8V regulator.
Analog 3.6V regulator for ADC, no current drive capacity.
5V analog power for 4.2/3.6V regulator.
Analog 4.2V regulator for Analog 3.6V regulator, no current drive capacity.
Analog 3.6V regulator for DAC left channel, no current drive capacity.
Analog 3.6V regulator for DAC right channel, no current drive capacity.
Digital Ground.
Digital Ground.
Digital Ground.
Analog Ground.
Analog Ground.
Analog Ground.
Analog Ground.
Audio Interface
Combo jack detect and auto switch, detect combo jack type and switch to
MICR_RING2 or MBIASR_SLEEVE.
Microphone in left channel.
Microphone in right channel or combo jack Ring2 pin input.
Microphone bias (2.75V) for Left channel.
Microphone bias (2.75V) for Right channel or combo jack Sleeve pin input.
Voltage reference cap filter.
Line out left channel.
Line out common reference for cap-less connection.
Suggested connections:
Cap-less: 10uF
None use: floating
Line out right channel.
Analog control voltage input for playback volume control.
SAR ADC digital input range:
SARAD<5:0>
000000:Maxium------27.3mV
111111:Minium-------1.75V
(27.3mV/1step)
S/PDIF I/O
S/PDIF transmitter
SPDIF_O is an output buffer with 8mA Tri-state.
GPIO
General purpose input/output (default Volume Up button).
3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input. (JTAG-TCK)
General purpose input/output (default Volume Down button).
3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input. (JTAG-TMS)
General purpose input/output (default Play Mute button).
3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input. (JTAG-TDI)
Page 14 / 60
Rev.1.6
www.cmedia.com.tw
Copyright© C-Media Electronics Inc.