CM108B Datasheet, PDF (20/24 Pages) C-Media Electronics – A Highly Integrated USB Audio Single Chip

8 Electrical characteristics
8.1 Absolute maximum rating
Symbol
Dvmin
Dvmax
Avmin
Avmax
Dvinout
Avinout
TBstgB
ESD (HBM)
ESD (MM)
Latch Up
Parameters
Min. digital supply voltage
Max. digital supply voltage
Min. analog supply voltage
Max. analog supply voltage
Voltage on any digital input or output pin
Voltage on any analog input or output pin
Storage temperature range
ESD human body mode
ESD machine mode
JEDEC standard no.78, Mar. 1997
CM108B
USB Audio Single Chip
Value
Unit
– 0.3
V
+6
V
– 0.3
V
+6
V
–0.3 to +5.5
V
–0.3 to +3.96
V
-40 to +125
°C
+-4000
V
+-200
V
200
mA
8.2 Operation conditions
Operation conditions
Min
Typ
Max
Analog supply voltage
4.5
5.0
5.5
Digital supply voltage
4.5
5.0
5.5
Total power consumption
-
37.25
Suspend-mode power consumption
-
1.58
Operating ambient temperature
-20
-
70
Unit
V
V
mA
uA
°C
8.3 Electrical parameters
Resolution
THD + N (-3dBr) @1KHz
SNR
Silent SNR
Dynamic range
Frequency response 48KHz
Frequency response 44.1KHz
Full Scale Output voltage (rms)
Resolution
THD + N (-3dBr) @1KHz
SNR
Silent SNR
Dynamic range
Frequency response 48KHz
Frequency response 44.1KHz
Full Scale Output voltage (rms)
Volume Control Initial Value
Min.
Typ.
DAC (10K Ohm Loading)
-
16
-
-72
-
93
-
98
-
92
20
-
20
-
-
0.995
DAC (32 Ohm loading)
-
16
-
-70
-
93
-
98
-
92
20
-
20
-
-
0.442
Output Volume Control
-10
Max.
-
-
-
-
-
20K
20K
-
-
-
-
-
-
20K
20K
-
Unit
Bits
dB
dB
dB
dB
Hz
Hz
Vrms
Bits
dB
dB
dB
dB
Hz
Vrms
dB
Datasheet Revision: 1.11
Page 20 / 24
www.cmedia.com.tw
Copyright© C-Media Electronics Inc.