LM4856LQBD National Semiconductor, LM4856LQBD Datasheet - Page 4

• Manufacturer Part Number: LM4856LQBD
• Description: BOARD EVALUATION LM4856LQ
• Manufacturer: National Semiconductor
• Series: Boomer®r

Specifications of LM4856LQBD

• Amplifier Type: Class AB
• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.5W x 1 @ 4 Ohm; 60mW x 2 @ 32 Ohm
• Voltage - Supply: 2.6 V ~ 5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: LM4856
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

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V
T
t
t
t
t
t
1
2
3
4
5
Symbol
SD
IL
Electrical Characteristics
The following specifications apply for V
Logic Low Input Voltage
Digital Volume Range
(R
Digital Volume Range
(Phone_In_HS)
Digital Volume Stepsize
Digital Volume Stepsize Error
Phone_In_IHF Volume
Phone_In_IHF Mute Attenuation
Phone_In_IHF Input Impedance
Phone_In_HS Input Impedance
R
Thermal Shutdown Temperature
SCL (Clock) Period
SDA to SCL Set-up Time
Data Out Stable Time
Start Condition Time
Stop Condition Time
IN
IN
and L
and L
IN
IN
Parameter
)
Input Impedance
DD
= 5.0V, T
(Notes 3, 8) (Continued)
Input referred minimum gain
Input referred maximum gain
Input referred minimum gain
Input referred maximum gain
BTL gain from Phone_In _IHF to
SPKR
Output Mode 2, 4, 6
Maximum gain setting
Mininum gain setting
Maximum gain setting
Mininum gain setting
A
OUT
= 25˚C unless otherwise specified.
Conditions
4
(Note 5)
Typical
-34.5
-40.5
±
12.0
33.5
100
100
100
170
6.0
1.5
12
20
20
0.1
LM4856
(Notes 6,
Limits
GND
-35.1
-33.9
-41.1
-39.9
11.4
12.6
±
11.4
12.6
125
125
150
100
100
100
11)
0.4
5.4
6.6
2.5
15
25
25
42
75
15
25
75
0.6
0
dB ( max)
dB (max)
dB (max)
dB (max)
dB (max)
dB (max)
kΩ (max)
kΩ (max)
kΩ (max)
kΩ (max)
kΩ (max)
dB (min)
dB (min)
dB (min)
dB (min)
dB (min)
kΩ (min)
kΩ (min)
kΩ (min)
kΩ (min)
kΩ (min)
(Limits)
˚C (min)
µs (min)
ns (min)
ns (min)
ns (min)
ns (min)
V (max)
V (min)
Units
dB
dB