參數(shù)資料
型號(hào): SA58635UK
廠商: NXP SEMICONDUCTORS
元件分類(lèi): 音頻/視頻放大
英文描述: 2 x 25 mW class-G stereo headphone driver with I2C-bus volume control
中文描述: AUDIO AMPLIFIER, PBGA16
封裝: 1.70 X 1.70 MM, 0.56 MM HEIGHT, WLCSP-16
文件頁(yè)數(shù): 28/30頁(yè)
文件大小: 277K
代理商: SA58635UK
SA58635_1
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 01 — 26 March 2010
7 of 30
NXP Semiconductors
SA58635
2
× 25 mW class-G stereo headphone driver
7.4 Volume control
Volume levels are set in the VOLCTL register (register 02h) as described in Section 7.3.2.
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.
Table 9.
Volume and gain control
Volume control word
Gain
± 0.5 (dB)
0000 000x
59
0000 001x
55
0000 010x
51
0000 011x
47
0000 100x
43
0000 101x
39
0000 110x
35
0000 111x
31
0001 000x
27
0001 001x
25
0001 010x
23
0001 011x
21
0001 100x
19
0001 101x
17
0001 110x
15
0001 111x
13
0010 000x
11
0010 001x
10
0010 010x
9
0010 011x
8
0010 100x
7
0010 101x
6
0010 110x
5
0010 111x
4
0011 000x
3
0011 001x
2
0011 010x
1
0011 011x
0
0011 100x
+1
0011 101x
+2
0011 110x
+3
0011 111x
+4
1xxx xxxx
Mute Left active
x1xx xxxx
Mute Right active
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