LV4904V Datasheet, PDF (1/25 Pages) Sanyo Semicon Device – Digital Input Class-D Power Amplifier

Ordering number: ENA1963
LV4904V
Monolithic IC
Digital Input Class-D Power Amplifier
Overview
The LV4904V is a 2-channel class-D amplifier IC that supports digital input. With this single chip and with a minimal
number of external components, it is possible to effectively implement class-D amplifiers. The LV4904V incorporates a
soft mute function and a gain controller without pop noise, and can be used as a master volume control of the set. Its
function settings can be established through an I²C bus interface, but it is also possible to establish these settings simply by
pin settings without using the I²C bus. The LV4904V is ideally suited as the power amplifiers in mini components,
flat-panel TVs, game machines, electronic musical instruments and other such products.
Features
• I²S input, 2-channel class-D power amplifier
• On-chip variable over-sampler
• Gain controller (+12dB to -81dB, in 1.5 dB increments)
• Soft mute function
• Controllable via I²C bus or pin settings
• Under voltage protection circuit, overcurrent protection circuit, thermal protection circuit integrated
Functions
• Input PCM (Fs): 32 kHz/44.1 kHz/48 kHz/88.1 kHz/96 kHz/176.2 kHz/192 kHz
• Master clock input: 256 fs/384 fs/512 fs/768 fs (when Fs=32/44.1/48 kHz)
• Input format: I²S/24 bits left justified MSB-first / 24 bits right justified LSB-first / 16/18/20/24 bits right justified
MSB-first
• Output (THD + N=10%) : 10W × 2 channels (PVD = 15V, RL = 8Ω), 15W × 2 channels (PVD = 18V, RL = 8Ω)
• Efficiency
: 85% (PVD = 15V, RL = 8Ω, fin = 1 kHz, Po = 10W)
• THD + N
: 0.1% or less (PVD = 15V, RL = 8Ω, fin = 1 kHz, Po = 1W, filter: AES17)
• Power supply voltages : PVD = 8 to 20V, VDD = 3.3V
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
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instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
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customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
92811 SY 20110606-S00002 No.A1963-1/30