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LM4985 データシート(PDF) 3 Page - Texas Instruments

部品番号 LM4985
部品情報  LAudio Power Amplifier Series Stereo 135mW Low Noise Headphone Amplifier with Selectable Capacitively Coupled
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メーカー  TI1 [Texas Instruments]
ホームページ  http://www.ti.com
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LM4985 データシート(HTML) 3 Page - Texas Instruments

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1
2
3
D
C
B
A
Controlled
Analog Volume
Control
Interface
Output
Transient
Suppression
and
Mode-
Control Logic
Bias
Generator
-
+
-
+
-
+
Volume
Control
Volume
Control
IN1
BYPASS
IN2
GND
0.47 PF
0.47 PF
CNTGND
OUT2
OUT1
VDD
I
2
C Digitally
Mux
Mux
Digital
Control
System
LM4985, LM4985TMEVAL
www.ti.com
SNAS346B – MAY 2006 – REVISED MAY 2006
Figure 3. Typical OCL Output Configuration Circuit
Connection Diagram
Figure 4. DSBGA Package
Top View
See NS Package Number YFQ0012
PIN REFERENCE, NAME, AND FUNCTION
Reference
Name
Function
A1
ADR
I2C serial interface address input.
A2
IN2
Analog signal input two.
A3
OUT2
Power amplifier two output.
B1
SDA
I2C serial interface data input.
B2
BYPASS
The internal VDD/2 ac bypass node.
B3
CNTGND
In OCL mode, this is the ac ground return. It is biased to VDD/2. Leave unconnected for C-
CUPL mode.
C1
SCL
I2C serial interface clock input.
C2
GND
The LM4985’s power supply ground input.
C3
VDD
The LM4985’s power supply voltage input.
D1
I2CVDD
I2C serial interface power supply input. Can be connected to the same supply that is
connected to the VDD pin.
D2
IN1
Analog signal input one.
D3
OUT1
Power amplifier one output.
Copyright © 2006, Texas Instruments Incorporated
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Product Folder Links: LM4985 LM4985TMEVAL


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