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LM4961 Datenblatt(PDF) 4 Page - Texas Instruments

Teilenummer LM4961
Bauteilbeschribung  Ceramic Speaker Driver
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Hersteller  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

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LM4961, LM4961LQBD
SNAS242J – AUGUST 2004 – REVISED MARCH 2007
www.ti.com
Electrical Characteristics VDD = 4.2V (continued)
The following specifications apply for VDD = 4.2V, AV-BTL = 26dB, RL = 2µF+30Ω, Cb = 1.0μF, Band-SW = VDD unless
otherwise specified. Limits apply for TA = 25°C.
Symbol
Parameter
Conditions
LM4961
Units
(Limits)
Typical(1)
Limit(2)(3)
PSRR
Power Supply Rejection Ratio
VRIPPLE = 200mVp-p, f = 100Hz
80
65
dB (min)
Ron-sw-out
On Resistance on SW-Out
Band SW “High” Isink = 100µA
170
220
Ω (max)
(Between pin 1 and pin 28)
TWUA
Amplifier Wake-up Time
CB = 1μF
25
35
ms (max)
Electrical Characteristics VDD = 3.2V
The following specifications apply for VDD = 3.2V, AV-BTL = 26dB, RL = 2µF+30Ω, Cb = 1.0μF, Band-SW = VDD unless
otherwise specified. Limits apply for TA = 25°C.
Symbol
Parameter
Conditions
LM4961
Units
(Limits)
Typical(1)
Limit(2)(3)
IDD
Quiescent Power Supply Current
VIN = 0V, No Load
9
15
mA (max)
Band-SW = VDD
Iddrcv
Iq in receiver mode
VIN = 0V, No Load
2
4
mA (max)
Band-SW = GND
ISD
Shutdown Current
VSHUTDOWN1 = VSHUTDOWN2 = GND
0.1
2.0
µA (max)
Band-SW = GND (Note 9)
VLH
Logic High Threshold Voltage
For Shutdown 1, Shutdown 2, and
1.5
V (min)
Band-SW
VLL
Logic Low Threshold Voltage
For Shutdown 1, Shutdown 2, and
0.4
V (max)
Band-SW
RPULLDOWN
Pulldown Resistor
For Shutdown 2 and Band-SW
70k
50k
Ω (min)
TSD
Thermal Shutdown Temperature
125
°C (min)
THD = 1%, f = 1kHz
Vout
Output Voltage Swing
15
14
Vp-p (min)
RL = 2μF+30Ω Mono BTL
THD+N
Total Harmomic Distortion + Noise
Vout = 14Vp-p, f = 1kHz
0.1
1.0
% (max)
εOS
Output Noise
A-Weighted Filter, VIN = 0V (Note 10)
125
µV
PSRR
Power Supply Rejection Ratio
VRIPPLE = 200mVp-p, f = 100Hz
80
65
dB (min)
Ron-sw-out
On Resistance on SW-Out
Band SW “High” Isink = 100µA
170
220
Ω (max)
(Between pin 1 and pin 28)
(1)
Typicals are measured at 25°C and represent the parametric norm.
(2)
Limits are specified to AOQL (Average Outgoing Quality Level).
(3)
Datasheet min/max specification limits are specified by design, test, or statistical analysis.
4
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Copyright © 2004–2007, Texas Instruments Incorporated
Product Folder Links: LM4961 LM4961LQBD


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