参数资料
型号: LM4838ITL/NOPB
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 音频控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PBGA36
封装: MICRO, SMD-36
文件页数: 34/38页
文件大小: 2351K
代理商: LM4838ITL/NOPB
Absolute Maximum Ratings (Note 10)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
6.0V
Storage Temperature
-65C to +150C
Input Voltage
0.3V to V
DD +0.3V
Power Dissipation (Note 11)
Internally limited
ESD Susceptibility (Note 12)
2000V
ESD Susceptibility (Note 13)
200V
Junction Temperature
150C
Soldering Information
Small Outline Package
Vapor Phase (60 sec.)
215C
Infrared (15 sec.)
220C
See AN-450 “Surface Mounting and their Effects on
Product Reliability” for other methods of soldering surface
mount devices.
θ
JC (typ) — LQA028AA
3C/W
θ
JA (typ) — LQA028AA
42C/W
θ
JC (typ) — MTC28
20C/W
θ
JA (typ) — MTC28
80C/W
θ
JC (typ) — MXA28A
2C/W
θ
JA (typ) — MXA28A (exposed
41C/W
θ
JA (typ) — MXA28A (exposed
54C/W
θ
JA (typ) — MXA28A (exposed
59C/W
θ
JA (typ) — MXA28A (exposed
93C/W
θ
JA (typ) — ITL36AAA
100C/W
θ
JC (typ) — ITL36AAA (Note 16)
65C/W
θ
JA (typ) — GRA49A
100C/W
θ
JC (typ) — GRA49A (Note 17)
54C/W
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤T
MAX
40C
≤TA ≤ 85C
Supply Voltage
2.7V
≤ V
DD
≤ 5.5V
Electrical Characteristics for Entire IC (Notes 7, 10)
The following specifications apply for V
DD = 5V unless otherwise noted. Limits apply for TA = 25C.
Symbol
Parameter
Conditions
LM4838
Units
(Limits)
Typical
Limit
V
DD
Supply Voltage
2.7
V (min)
5.5
V (max)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IO = 0A
15
30
mA (max)
I
SD
Shutdown Current
V
shutdown =VDD
0.7
2.0
A (max)
V
IH
Headphone Sense High Input Voltage
4
V (min)
V
IL
Headphone Sense Low Input Voltage
0.8
V (max)
Electrical Characteristics for Volume Attenuators (Notes 7, 10)
The following specifications apply for V
DD = 5V. Limits apply for TA = 25C.
Symbol
Parameter
Conditions
LM4838
Units
(Limits)
Typical
Limit
C
RANGE
Attenuator Range
Gain with V
DCVol = 5V, No Load
±0.75
dB (max)
Attenuation with V
DCVol = 0V (BM &
SE)
-75
dB (min)
A
M
Mute Attenuation
V
mute = 5V, Bridged Mode (BM)
-78
dB (min)
V
mute = 5V, Single-Ended Mode (SE)
-78
dB (min)
Electrical Characteristics for Single-Ended Mode Operation (Notes 7, 10)
The following specifications apply for V
DD = 5V. Limits apply for TA = 25C.
Symbol
Parameter
Conditions
LM4838
Units
(Limits)
Typical
Limit
P
O
Output Power
THD = 1.0%; f = 1kHz; R
L =32
85
mW
THD=10%;f=1 kHz; R
L =32
95
mW
LM4838
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