TC94A48FG
TC94A48FG is Single-chip Audio Digital Signal Processor manufactured by Toshiba.
Features
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- Incorporates a 1-bit Σ-∆ AD converter (2 channels). THD+N: -78 d B (typ.), S/N ratio: 92 d B (typ.) Incorporates a multi-bit Σ-∆ DA converter (6 channels). THD+N: -88 d B (typ.), S/N ratio: 98 d B (typ.) Digital input/output ports Four input ports (8 channels) Four output ports (8 channels) The DSP block specifications are as follows: Data bus : 24 bits M ultiplier/adder : 24 bits × 24 bits + 51 bits → 51 bits Accumulator : 51 bits (sign extension: 4 bits) Program ROM : 3072 words × 16 bits Program RAM : 1024 words × 16 bits XRAM : 4096 words × 24 bits YRAM : 1024 words × 24 bits CROM : 1024 words × 24 bits The microcontroller interface can be selected between serial mode and I2C bus mode. Operating supply voltage: 3.3 V (some pins accept 5 V) CMOS silicon structure supports high speed. The package is a 64-pin LQFP (0.5-mm pitch) package.
P-LQFP64-1010-0.50E
Weight: 0.4 g (typ.)
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2005-09-28 http://..
Block Diagram
11.2896MHz(256fs) LRCKO /MIACK /MIDIO MCKO GPO1 GPO0 BCKO /MICS /MICK MIMD GPI1 GPI0 MILP
PLLC
PLL
Timing
Generalperpose port
Microcontroller interface
/RST BTMD
LRCKI0 LRCKI1 BCKI0 BCKI1 SDI0 SDI1 SDI2 SDI3 (8ch)
SDO0
SO
SDO1 SDO2
SI
(8ch)
16bit Instruction DSP ΣΔ ΣΔ DAC 1ch DAC 2ch DAC 3ch VREF ΣΔ ΣΔ ΣΔ DAC 4ch DAC 5ch DAC 6ch
SDO3
DAO1 DAO2
LIN ADVL ADVR
ADC Lch MAF( →4fs)
(4fs ra te × 6ch)
(4fs ra te ×2ch)
ΣΔ
DAO3 VRI
VREF VREF
REG Buffer (64w ×21b)
(4fs ra te ×6ch)
(4fs ra te ×...