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TC9447F Datasheet

  • TC9447F

  • Single-Chip Audio Digital Signal Processor

  • 44頁

  • TOSHIBA

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TC9447F
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC9447F
Single-Chip Audio Digital Signal Processor
The TC9447F is a single-chip audio digital signal processor
incorporating an AD/DA converter. The built-in program memory
(ROM) can contain a range of application programs for concert
hall acoustic field simulation, for digital filters such as equalizers,
and for dynamic range control. In addition, the device includes
64kb of data delay RAM, making external RAM unnecessary.
Features
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Incorporates a 1-bit
危鈭?type
AD converter (two channels).
THD:
鈭?2dB,
S/N ratio: 95dB (typ.)
Incorporates a 1-bit
危鈭?type
DA converter (four channels).
THD:
鈭?5dB,
S/N ratio: 100dB (typ.)
A 鹵10-dB attenuator is built into the DA converter output block (two channels only)
Each port has a digital input/output (three lead-type)
A built-in self-boot function automatically sets the coefficients and register values at initialization.
Boot ROM
Data bus
Multiplier/adder
Accumulator
Program ROM
Coefficient RAM
Coefficient ROM
Offset RAM
Data RAM
Operation speed
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: 1024 words 脳 18 bits
: 24 bits
: 24 bits 脳 16 bits + 43 bits
鈫?/div>
43 bits
: 43 bits (sign extension: 4 bits)
: 1024 words 脳 32 bits
: 320 words 脳 16 bits
: 256 words 脳 16 bits
: 64 words 脳 16 bits
: 256 words 脳 24 bits
: 44ns (510-step (approx) operation per cycle at fs = 44.1 kHz)
The DSP block specifications are as follows:
Weight: 1.57g (typ.)
Interface buffer RAM : 32 words 脳 16 bits
Incorporates data delay RAM.
Delay RAM
: 4096 words 脳 16 bits (64 kbits)
The microcontroller interface can be selected between Standard Transmission mode and I
2
C bus mode.
CMOS silicon structure supports high speed.
The package is a 100-pin flat package.
1
2002-02-05

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