参数资料
型号: MAX9796EBX+TG45
厂商: Maxim Integrated Products
文件页数: 14/28页
文件大小: 0K
描述: IC AMP AUDIO 2.3W MONO D 36UCSP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: DirectDrive®
类型: D 类
输出类型: 1-通道(单声道),带立体声耳机
在某负载时最大输出功率 x 通道数量: 2.3W x 1 @ 4 欧姆
电源电压: 2.7 V ~ 5.5 V
特点: 消除爆音,差分输入,I²C,静音,短路和热保护,关机,音量控制
安装类型: 表面贴装
供应商设备封装: 36-UCSP
封装/外壳: 36-WFBGA,CSBGA
包装: 带卷 (TR)
Input Mode Control
The MAX9796 has three flexible inputs that can be con-
figured as single-ended stereo inputs or differential
mono inputs. All input signals are summed into three
unique signals, Left (L), Right (R), and Mono (M), which
are routed to the output amplifiers. The bit B4 allows
the option of boosting low-level signals on INA. B4 can
be set as follows:
1 = Input A’s gain +20dB for low-level signals such as
FM receivers.
0 = Input A’s gain is either 0dB or +6dB as set by
IN+6dB (bit B3 of the Control Register).
Tables 5a and 5b show how the inputs–INA, INB, and
INC–are mixed to create the internal signals left (L),
right (R), and mono (M).
MAX9796
2.3W, High-Power Class D Audio Subsystem
with DirectDrive Headphone Amplifiers
______________________________________________________________________________________
21
COMMAND
DATA
DESCRIPTION
Input Mode (000)
10000
Input A gain = +20dB; input A, B, and C singled-ended stereo inputs
Mono Volume (001)
11111
Maximum volume
Left Volume (010)
11111
Maximum volume
Right Volume (011)
11111
Maximum volume
Output Mode (100)
01000
Mode 8: stereo headphone, mono speaker
Global Control Register (101)
00011
Powered-off, input B/C gain = 0dB, MUTE off, SSM on, MONO on
Table 3. Power-On Reset Conditions
B7
B6
B5
B4
B3
B2
B1
B0
Input Mode Control
0
INA+20dB
INMODE (Tables 5a and 5b )
Table 4. Input Mode Control Register
PROGRAMMING MODE
INPUT CONFIGURATION
INMODE
B3
B2
B1
B0
INA1
INA2
INB1
INB2
INC1
INC2
0
LR
00
01
L
R
L
R
M+
M-
00
10
L
R
M+
M-
L
R
0
1
L
R
M+
M-
M+
M-
0
1
0
L
R
R+
R-
L+
L-
0
1
0
1
L
R
L+
L-
R+
R-
01
10
M+
M-
L
R
L
R
0
1
M+
M-
L
R
M+
M-
1
0
M+
M-
M+
M-
L
R
1
0
1
M+
M-
M+
M-
M+
M-
1
0
1
0
M+
M-
R+
R-
L+
L-
1
0
1
M+
M-
L+
L-
R+
R-
Table 5a. Input Mode
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