LM4856LQBD National Semiconductor, LM4856LQBD Datasheet - Page 15

• 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

Application Information
P
P
R = R
L = L
SD = Shutdown
MUTE = Mute Mode
G1 = gain from P
G2 = gain from L
G1 = G2 + 6dB
IHF
HS
M2
0
0
0
0
1
1
1
1
Function
= Non Filtered Phone_In_HS
= External High Pass Phone_In_IHF
IN
Default
IN
Name
BIT
M1
0
0
1
1
0
0
1
1
M0
IN
HS
0
1
0
1
0
1
0
1
and R
to L
OUT
Handsfree Speaker Output
D7
V4
IN
0
to L
and R
OUT
12dB x P
12dB x P
12dB x P
12dB x P
OUT
and R
MUTE
MUTE
MUTE
SD
OUT
D6
V3
0
IHF
IHF
IHF
IHF
Volume Control
(Continued)
TABLE 2. Output Mode Selection
D5
V2
0
Right Headphone Output
(G1 x P
(G1 x P
TABLE 1. Data Register
G1 x P
G1 x P
G2 x R
G2 x R
HS
HS
MUTE
SD
) + (G2 x R)
) + (G2 x R)
D4
V1
0
15
HS
HS
DATA
D3
V0
0
Left Headphone Output
(G1 x P
(G1 x P
G1 x P
G1 x P
G2 x L
G2 x L
HS
HS
MUTE
SD
) + (G2 x L)
) + (G2 x L)
M2
D2
0
HS
HS
Output Mode Control
D1
M1
Output Mode Number
0
0
1
2
3
4
5
6
7
www.national.com
M0
D0
0