LM4930LQBD National Semiconductor, LM4930LQBD Datasheet - Page 33

• Manufacturer Part Number: LM4930LQBD
• Description: BOARD EVALUATION LM4930LQ
• Manufacturer: National Semiconductor
• Series: Boomer®r

Specifications of LM4930LQBD

• Amplifier Type: Class AB
• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1W x 1 @ 8 Ohm; 27mW x 2 @ 32 Ohm
• Voltage - Supply: 2.6 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: LM4930
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Application Information
A single-ended stereo headphone output is also featured,
providing up to 30mW of power per channel into 32Ω with a
5V analog supply.
A Headphone Sense output is provided on J6 for connection
to an external controller. This pin goes high when a hea-
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33
phone is present (when used as shown in Figure 5) and will
function in all modes independent of other operations the
LM4930 may be currently processing.
The MIC Jack input (J3) provides for a low level analog input.
Pin 3 provides the power to the MIC and the positive input of
the LM4930. Gain for the MIC preamp is set in the GAIN-
CONFIG register.
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