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2 . S G H - X 1 0 0
C i r c u i t
2-3. EMI ESD Filter
This system uses the EMI ESD filter, EMIF09 to protect noise from IF CONNECTOR part.
2-4. IF connetor
It is 18-pin connector. They are designed to use VBAT, V_EXT_CHARGE, TXD0, RXD0, RTS0, CTS0, JIG_REC,
CHARGER_OK, RXD1, TXD1, AUX_MIC, AUX_SPK and GND. They connected to power supply IC, microprocessor and
signal processor IC.
3) Battery Charge Management
a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. If ta connected to phone,
"V_EXT_CHARGE" enable charger IC and supply current to battery. when fault condition caused, "CHG_ON" signal level
change low to high and charger IC stop charging process.
4) Audio
REC_P and REC_N from OM6357 are connected to the main receiver. AUXSP is connected to the Hands free kit.
MIC_P and MIC_N are connected to the main MIC. And AUX_MIC_P and AUX_MIC_N are connected to the Hands
free kit.
YMU762MA3 is a LSI for portable telephone that is capable of playing high quality music by utilizing FM synthesizer
and ADPCM decorder that are included in this device. As a synthesis, YMU762MA3 is equipped 32 voices with different
tones. Since the device is capable of simultaneously generating up to synchronous with the play of the FM synthesizer,
various sampled voices can be used as sound effects. Since the play data of YMU762MA3 are interpreted at anytime
through FIFO, the length of the data(playing period) is not limited, so the device can flexibly support application such as
incoming call melody music distribution service. The hardware sequencer built in this device allows playing of the
complex music without giving excessive load to the CPU of the portable telephones. Moreover, the registers of the FM
synthesizer can be operated directly for real time sound generation, allowing, for example, utilization of various sound
effects when using the game software installed in the portable telephone. YMU762 includes a speaker amplifier with high
ripple removal rate whose maximum output is 550mW (SPVDD=3.6V). The device is also equipped with conventional
function including a vibartor and a circuit for controlling LEDs synchornous with music. For the headphone, it is provided
with a stereophonic output terminal. For the purpose of enabling YMU762MA3 to demonstrate its full capablities, Yamaha
purpose to use "SMAF:Synthetic music Mobile Application Format" as a data distribution format that is compatible with
multimedia. Since the SMAF takes a structure that sets importance on the synchronization between sound and images,
various contents can be written into it including incoming call melody with words that can be used for traning karaoke,
and commercial channel that combines texts, images and sounds, and others. The hardware sequencer of YMU762MA3
directly interprets and plays blocks relevant to systhesis (playing music and reproducing ADPCM with FM synthesizer) that
are included in data distributed in SMAF.
D e s c r i p t i o n
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
2- 3
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