uda1335h NXP Semiconductors, uda1335h Datasheet - Page 18

• Manufacturer Part Number: uda1335h
• Description: Universal Serial Bus Usb Audio Playback Recording Peripheral Aprp
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Bass control
The bass control is available for the master channel of the UDA1335H. The bass range is from 0 to approximately 24 dB
in steps of 2 dB. It should be noted that the negative bass values as defined in the “USB Device Class Definition for Audio
Devices” are not supported by the UDA1335H; values below 0 dB are returned as 0 dB. The corner frequency is 75 Hz.
Table 9 gives the mapping of the bBass value upon the actual bass setting of the USB APRP.
Table 9 Bass control characteristics
1998 Aug 28
Universal Serial Bus (USB) Audio
Playback Recording Peripheral (APRP)
B7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
B6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
B5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
1
B4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
1
1
0
0
1
bBASS
B3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
1
0
1
0
1
0
1
1
B2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
B1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
1
18
B0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
1
1
BASS USB HOST
13.25
15.25
17.25
19.25
21.25
11.25
(dB)
0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
5.25
7.25
9.25
...
...
...
...
...
...
...
...
...
...
Preliminary specification
BASS USB APRP
UDA1335H
(dB)
13.3
15.2
17.3
19.2
21.2
11.3
1.7
3.6
5.4
7.4
9.4
0