LM4936MH National Semiconductor, LM4936MH Datasheet - Page 7

• Manufacturer Part Number: LM4936MH
• Description: IC,Audio Amplifier,DUAL,TSSOP,28PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM4936MH

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Note 18: If system beep is detected on the Beep In pin, the system beep will be passed through the bridged amplifier regardless of the logic of the Mute and HP
Control bits (B1, B4) and HP Sense pin.
Logic Level
Table 4 )
Address
Register
Register
Control
Volume
Control
Mode
(See
I
2
C
0
1
HP Sense Pin
B7
1
0
1
1 (V
1 (V
B3 (Gain Sel)
External Gain
Internal Gain
0
0
DD
DD
)
)
B6
1
0
0
B5
0
0
0
Fixed Volume, 0dB
Adjustable Volume
TABLE 1. I
Control
B2 (Mode)
HP
B4
V4
1
TABLE 2. Headphone Control
TABLE 3. Logic Controls
2
I
2
C/SPI Interface Controls (Note 18)
C/SPI HP Control (B4)
Gain Sel
B3
V3
1
0
1
0
1
Mute Off (Play)
7
B1 (Mute)
Mute On
Mode
B2
V2
0
Device Shutdown
B0 (Shutdown)
Device Active
Output Stage Configuration
Mute
B1
V1
ID
BTL
SE
SE
SE
I
2
C/SPI Select
SPI mode
I
2
Shutdown
C mode
B0
V0
www.national.com
0