CMI9738 Datasheet, PDF (34/36 Pages) List of Unclassifed Manufacturers – Integrated Multi-channel AC97

CMI 9738
Integrated Multi-channel AC‘97
Table 19. Power Consumption
Parameter
Digital Supply Current
Analog Supply Current
Min
+3.3V Digital -
+5V Analog -
Typ Max Units
10
-
mA
20
-
mA
8.6 ANALOG PERFORMANCE CHARACTERISTICS
(Standard test conditions unless otherwise noted: T_ambient = 25 ⁰ C; DVdd = 3.3 V +/- 5%; AVdd =
5.0 V +/-5%; Input Voltage Levels: Logic Low = 0.35*Vdd, Logic High = 0.65*Vdd; 1 kHz input
sine wave; Sample Frequency = 48 kHz; 0 dB = 1Vrms, 10KW/50pF load, Testbench
Characterization BW: 20 Hz – 20 kHz, 0 dB attenuation; tone and 3D disabled)
Notes:
(1) With +20 dB Boost on, 1.0 Vrms with Boost off
(2) ±1dB limits
(3) The ratio of the rms output level with 1kHz full scale input to the rms output level with all zeros
into the digital input. Measured "A wtd" over a 20 Hz to a 20 kHz bandwidth. (AES17-1991
Idle Channel Noise or EIAJ CP-307 Signal-to-noise Ratio).
(4) 0 dB gain, 20 kHz BW, 48 kHz Sample Frequency
(5) +3 dB output into 32W load
(6) ±0.25 dB limits
(7) Stop Band rejection determines filter requirements. Out-of-Band rejection determines audible
noise.
(8) The integrated Out-of-Band noise generated by the DAC process, during normal PCM audio
playback, over a bandwidth 28.8 to 100 kHz, with respect to a 1VRMS DAC output.
(9) Gain step size 1.5 dB is true for all attenuators except for PC_BEEP, which has 3.0dB step size.
C-MEDIA Electronics Inc.
6F, 100, Sec. 4, Civil Boulevard, Taipei, Taiwan, R.O.C. 106
TEL: [phone] FAX: [phone] E-mail:[e-mail]
Revision Date Apr./2002
Revision 1.1