SA58635 NXP Semiconductors, SA58635 Datasheet - Page 7
SA58635
Manufacturer Part Number
SA58635
Description
Manufacturer
NXP Semiconductors
Datasheet
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SA58635_1
Product data sheet
7.4 Volume control
Volume levels are set in the VOLCTL register (register 02h) as described in
As the volume is changed including muting and un-muting, the SA58635, will step to the
new value at an incremental (or decremental) rate of approximately one millisecond per
step. A full sweep from 00h to 1Fh will take roughly 32 milliseconds. The VOLCTL register
values represent a gain on the output channels as indicated in
Table 9.
Volume control word
0000 000x
0000 001x
0000 010x
0000 011x
0000 100x
0000 101x
0000 110x
0000 111x
0001 000x
0001 001x
0001 010x
0001 011x
0001 100x
0001 101x
0001 110x
0001 111x
0010 000x
0010 001x
0010 010x
0010 011x
0010 100x
0010 101x
0010 110x
0010 111x
0011 000x
0011 001x
0011 010x
0011 011x
0011 100x
0011 101x
0011 110x
0011 111x
1xxx xxxx
x1xx xxxx
Volume and gain control
Rev. 01 — 26 March 2010
Gain ± 0.5 (dB)
−59
−55
−51
−47
−43
−39
−35
−31
−27
−25
−23
−21
−19
−17
−15
−13
−11
−10
−9
−8
−7
−6
−5
−4
−3
−2
−1
0
+1
+2
+3
+4
Mute Left active
Mute Right active
2 × 25 mW class-G stereo headphone driver
Table
9.
SA58635
© NXP B.V. 2010. All rights reserved.
Section
7.3.2.
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