RT9131CS Richtek Technology Corporation, RT9131CS Datasheet

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RT9131CS

Manufacturer Part Number
RT9131CS
Description
Manufacturer
Richtek Technology Corporation
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
RT9131CS
Manufacturer:
RICHTEK
Quantity:
567
Part Number:
RT9131CS
Manufacturer:
RICHTEK
Quantity:
2 500
General Description
The RT9131 is an integrated class AB stereo
headphone driver contained in a SOP-8 or DIP-8
plastic package with Mute feature. A class AB output
stage bias control circuit is employed to maintain low
audio signal distortion and power consumption. The
RT9131 further integrates a voltage divider inside
the chip. Thus, the external resistors can be
eliminated. The device is fabricated in a CMOS
process and has been primarily developed for
portable digital audio applications.
Ordering Information
RT9131
Marking Information
Typical Application Circuit
DS9131-01 November 2002
Part Number
RT9131CN
RT9131CS
H: Speaker Action
L: Mute On
Operating Tmperature Rnge
PackageType
N : DIP-8
S : SOP-8
C: Commercial Standard
V
MUTE
V
INA
RT9131CN
RT9131CS
Marking
Class AB Stereo Headphone Drive with Mute
100K
2.2µF
R1
C2
1µF
C4
3
1
2
4
Preliminary
OUTA
MUTE
INA
GND
RT9131
V
INB
OUTB
BIAS
VDD
INB
C3
Features
Applications
Pin Configurations
8
6
5
Part Number
RT9131CN
(Plastic DIP-8)
RT9131CS
(Plastic SOP-8)
7
High Signal-to-Noise Ratio
High Slew Rate
Low Distortion
Large Output Voltage Swing
Flexible Mute Function
Excellent Power Supply Ripple Rejection
Low Power Consumption
Short-circuit Elimination
Wide Temperature Range
No Switch ON/OFF Clicks
Integrated Voltage Divider (V
External Resistors
Portable Digital Audio
2.2µF
C7
C6
+ C5
4.7µF
220µF
220µF
+
C1
100µF
OUTA
MUTE
GND
Pin Configurations
INA
V
DD
1
2
3
4
TOP VIEW
DD
www.richtek.com.tw
/2) to Eliminate
RT9131
8
7
6
5
VDD
OUTB
BIAS
INB
1

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RT9131CS Summary of contents

Page 1

... Short-circuit Elimination Wide Temperature Range No Switch ON/OFF Clicks Integrated Voltage Divider (V External Resistors Portable Digital Audio Part Number Pin Configurations TOP VIEW RT9131CN (Plastic DIP-8) OUTA 1 MUTE 2 INA 3 RT9131CS (Plastic SOP-8) 4 GND C7 220µF C6 220µ 4.7µF 100µ ...

Page 2

RT9131 Absolute Maximum Ratings Supply Voltage Operating Ambient Temperature Range Maximum Junction Temperature Storage Temperature Range Power Dissipation 25° DIP-8 SOP-8 Package Thermal Resistance DIP-8, θ JA SOP-8, θ JA Electrostatic Discharge Notes: (1) ...

Page 3

Function Block Diagram Pin Description Pin No. Pin Name Pin Function 1 OUTA Channel A Output 2 MUTE Mute Control Input 3 INA Channel A Input 4 GND Ground 5 INB Channel B Input 6 BIAS VDD/2 Connected a Capacitor ...

Page 4

RT9131 Typical Operating Characteristics Quiescent Current 2.5 2 1 Supply Voltage (V) Output Voltage Transient 100 0 -100 5 0 Time: 10mS/Div Output Voltage Transient 100 0 -100 Without Time: ...

Page 5

THD+N vs. Output Power 100Hz R = 32Ω 0 0.01 100µ 1m 10m Output Power (W) THD+N vs. Output Power 0 V ...

Page 6

RT9131 THD+N vs. Output Power 100Hz 16Ω 0.1 0.01 100µ 1m 10m Output Power (W) THD+N vs. Output Power 1kHz 0 10 ...

Page 7

THD+N vs. Output Voltage 100Hz 32Ω 0.1 0.01 -40 -25 Output Voltage (dB) THD+N vs. Output Voltage 1kHz ...

Page 8

RT9131 THD+N vs. Output Voltage 100Hz 16Ω 0 0.01 -40 -25 Output Voltage (dB) THD+N vs. Output Voltage 0 V ...

Page 9

THD+N vs. Frequency 32Ω 0 0. 0.001 10 100 Frequency (Hz) Noise 32Ω ...

Page 10

RT9131 Crosstalk + 32Ω L -40 -80 Channel B -120 10 100 Frequency (Hz) Mute Function Time: 1mS/Div www.richtek.com.tw 10 Preliminary Channel A -11 1k 10k Frequency Response + ...

Page 11

Package Information Symbol DS9131-01 November 2002 Preliminary Dimensions In Millimeters Min Max 9.068 9.627 6.198 6.604 4.318 0.356 0.559 1.397 1.651 2.337 2.743 ...

Page 12

RT9131 J B Symbol www.richtek.com.tw 12 Preliminary Dimensions In Millimeters Min Max 4.801 5.004 3.810 3.988 1.346 1.753 0.330 0.508 1.194 1.346 0.178 0.254 0.102 0.254 ...

Page 13

DS9131-01 November 2002 Preliminary RT9131 www.richtek.com.tw 13 ...

Page 14

RT9131 RICHTEK TECHNOLOGY CORP. Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 www.richtek.com.tw 14 Preliminary RICHTEK TECHNOLOGY CORP. Taipei Office (Marketing) 8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, ...

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