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参数资料
| 型号： | SSM2932ACBZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC HEADPHONE AMP STEREO 16WLCSP |
| 标准包装： | 10,000 |
| 类型： | G 类 |
| 输出类型： | 耳机，2-通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 85mW x 1 @ 16 欧姆，45mW x 2 @ 32 欧姆 |
| 电源电压： | 2.5 V ~ 3.6 V |
| 特点： | 消除爆音，差分输入，短路保护，关机 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 16-WLCSP（1.64x1.64） |
| 封装/外壳： | 16-UFBGA，WLCSP |
| 包装： | 带卷 (TR) |
High Efficiency, Ground-Referenced
Class-G Headphone Amplifier
Data Sheet
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2012 Analog Devices, Inc. All rights reserved.
FEATURES
Ground-referenced Class-G output stage
Very high efficiency for portable applications
1.7 mA typical quiescent current
50 mW per channel into 16 Ω load (with 3.3 V supply)
98 dB signal-to-noise ratio (SNR), A-weighted
90 dB power supply rejection ratio at 217 Hz
2.5 V to 3.6 V supply range
Selectable gain: 0 dB or 6 dB
High-Z output mode for sharing of output jack
1 μA shutdown current
Short-circuit protection
Pop-and-click reduction circuitry
8 kV ESD protection on output terminals
16
-ball, 0.4 mm pitch WLCSP (1.64 mm × 1.64 mm)
40°C to +85°C operating temperature range
APPLICATIONS
Cell phones
Smartphones/multimedia phones
Digital cameras
Portable media players
Phone accessories
PDAs
GENERAL DESCRIPTION
The SSM2932 is a stereo headphone amplifier capable of
delivering 50 mW of continuous output power per channel
into 16 Ω single-ended loads at the 1% THD + N threshold.
The stereo headphone drivers are high efficiency, true ground-
referenced Class-G technology.
The SSM2932 incorporates a gain control pin that selects a gain
of 0 dB or 6 dB. The ground-referenced output scheme eliminates
the need for large dc blocking capacitors, reducing system cost
and board area. The Class-G amplifier is fine-tuned to maximize
battery life, a critical task in portable applications. The device
maximizes battery life by modulating the amplifier power supply
rail to match the output demand without consuming excessive
supply current, thus reducing power dissipation during typical
audio playback.
The SSM2932 is specified over the industrial temperature range
of 40°C to +85°C. It has output short-circuit protection as well
as ESD protection to 8 kV (human body model). The SSM2932
is available in a 16-ball, 1.64 mm × 1.64 mm wafer level chip
scale package (WLCSP).
FUNCTIONAL BLOCK DIAGRAM
10
36
0-
0
01
POR
GAIN
POWER
MANAGEMENT
PGA
POP/
CLICK
CURRENT
LIMIT
SSM2932
OUTL
SGND
OUTR
INL+
INL–
INR+
INR–
PGND
PVDD
C
PVS
S
C
PVD
D
CF
2
CF
1
GA
IN
HI
-Z
SD
Figure 1.
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