1999 May 10 17
Philips Semiconductors Preliminary specification
Universal Serial Bus (USB) CODEC UDA1325
Volume control
The volume of the UDA1325 can be controlled from 0 dB down to −60 dB (in steps of 1 dB). Below −60 dB the audio
signal is muted (−∞ dB). The setting of 0 dB is always referenced to the maximum available volume setting. Independant
volume control of the left and right channel is possible (balance control).
Table 9 Volume settings right playback channel
Table 10 Volume settings left playback channel
VR5 VR4 VR3 VR2 VR1 VR0 VOLUME (dB)
0000000
0000010
000010−1
000011−2
000100−3
... ... ... ... ... ... ...
111100−59
111101−60
111110−∞
111111−∞
VL5 VL4 VL3 VL2 VL1 VL0 VOLUME (dB)
0000000
0000010
000010−1
000011−2
000100−3
... ... ... ... ... ... ...
111100−59
111101−60
111110−∞
111111−∞