LM49200TLX/NOPB National Semiconductor, LM49200TLX/NOPB Datasheet - Page 15

• Manufacturer Part Number: LM49200TLX/NOPB
• Description: IC AUDIO SUB 1.25W AB 20USMD
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM49200TLX/NOPB

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.25W x 2 @ 8 Ohm; 38mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: Depop, Differential Inputs, I²C, Shutdown, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 20-MicroSMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM49200TLX

Notes: All registers default to 0 on initial power-up.
1. HPR_SD: Right channel shutdown control. See Table 3.
2. I
to act as a hardware reset input. See Table 3.
3. Turn_On_Time: Reduces the turn on time for faster acti-
vation. See Table 3.
4. Power_On: Master Power on bit. See Table 3.
Output Mode Control
Mono Input Volume
Headphone Output
Right Input Volume
Shutdown Control
Left Input Volume
2
CV
Address
Gain Control
Chip
Register
DD
Control
Control
Control
_SD: Control Enable Function. I
A7
1
D7
0
0
1
1
1
1
D6
0
1
0
0
1
1
A6
1
D5
2
0
0
0
1
0
1
CV
DD
FIGURE 4. Start and Stop Diagram
can be used
A5
TABLE 2. Control Registers
1
EP_Mode
HPR_SD
TABLE 1. Chip Address
D4
0
(1)
(5)
A4
15
1
5. EP_Mode: EP (Receiver) Mode control. Right loudspeaker
channel can be used as earpiece path. See Table 4.
6. Mode_Control: Sets the output mode. See Tables 4.
7. HP_Gain: Sets the headphone amplifier output gain. See
Table 5
8. Mono_Vol/Left_Vol/Right_Vol: Sets the input volume for
Mono, Left and Right inputs. See Table 6.
D3
0
0
A3
1
Mono_Vol
Right_Vol
I
2
Left_Vol
CV
DD
D2
Mode_Control
_SD
A2
0
(8)
(8)
(8)
(2)
HP_Gain
Turn_On
_Time
(6)
D1
A1
0
(3)
(7)
Power_On
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A0
0
D0
(4)