alc272 Realtek Semiconductor Corporation, alc272 Datasheet - Page 16

• Manufacturer Part Number: alc272
• Description: 4 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

6.3. Filter/Reference/Not Connect
6.4. Power/Ground
4 Channel High Definition Audio Codec
Name
Name
Name
MONO-OUT
LOUT2-L
LOUT2-R
Sense A
Sense B
VREF
LINE1-VREFO
MIC2-VREFO
LINE2-VREFO
MIC1-VREFO
CBP
CBN
CPVEE
JDREF
NC
AVDD1
AVSS1
AVDD2
AVSS2
DVDD
DVSS
DVDD-IO
DVSS
Type Pin Description
Type Pin Description
Type Pin Description
IO
IO
O
O
O
O
O
I
I
-
-
-
-
-
-
I
I
I
I
I
I
I
I
18
20
29
30
25
38
37
39
41
13
34
27
19
28
31
40
43
26
42
1
4
9
7
MONO-OUT
LOUT2 Left Channel
LOUT2 Right Channel
Jack Detect Pin 1
Jack Detect Pin 2
2.5V Reference Voltage
Bias Voltage for MIC2 Jack
Bias Voltage for MIC2 Jack
Bias Voltage for LINE2 Jack
Bias Voltage for MIC1 Jack
Charge Pump Bucket Capacitor 2.2µF capacitor to CBN (Positive terminal to CBP)
Charge Pump Bucket Capacitor 2.2µF capacitor to CBP (Negative terminal to CBN)
Reference Voltage
Reference Resistor for Jack
Detection
Not Connect
Analog VDD
Analog GND
Analog VDD
Analog GND
Digital VDD
Digital GND
Digital VDD
Digital GND
Table 3.
Table 4.
Filter/Reference
Power/Ground
8
Characteristic Definition
Characteristic Definition
Analog power for DACs and ADCs
Digital power for core
Digital ground for core
Typical 2.25V, 10µF capacitor to analog ground
2.5V/3.2V reference voltage
2.5V/3.2V reference voltage
2.5V/3.2V reference voltage
2.5V/3.2V reference voltage
2.2µF capacitor to analog ground (negative terminal
to CPVEE, positive to analog ground)
20K,1% resistor to analog ground
Total: 10 Pins
Analog power for mixer and amplifier
Analog ground for mixer and amplifier
Analog ground for DACs and ADCs
Digital power for HDA link (1.5V~3.3V)
Digital ground for HDA link
Total: 8 Pins
Characteristic Definition
Analog output (PORT-H)
Analog output (PORT-A-L)
Analog output (PORT-A-R)
Jack resistor network (5.1k, 10k, 20K, 39.2k) with
1% accuracy
Jack resistor network (5.1k, 10k, 20K, 39.2k) with
1% accuracy
Total: 18 Pins
Track ID: JATR-1076-21
Datasheet
ALC272
Rev. 1.0