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Numéro de référence | TC9447F | ||
Description | Single-Chip Audio Digital Signal Processor | ||
Fabricant | Toshiba Semiconductor | ||
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1 Page
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC9447F
Single-Chip Audio Digital Signal Processor
TC9447F
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
· Incorporates a 1-bit Σ∆-type AD converter (two channels).
THD: −82dB, S/N ratio: 95dB (typ.)
· Incorporates a 1-bit Σ∆-type DA converter (four channels).
Weight: 1.57g (typ.)
THD: −85dB, S/N ratio: 100dB (typ.)
· A ±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
: 1024 words × 18 bits
· The DSP block specifications are as follows:
Data bus
: 24 bits
Multiplier/adder
: 24 bits × 16 bits + 43 bits → 43 bits
Accumulator
: 43 bits (sign extension: 4 bits)
Program ROM
: 1024 words × 32 bits
Coefficient RAM
: 320 words × 16 bits
Coefficient ROM
: 256 words × 16 bits
Offset RAM
: 64 words × 16 bits
Data RAM
: 256 words × 24 bits
Operation speed
: 44ns (510-step (approx) operation per cycle at fs = 44.1 kHz)
Interface buffer RAM : 32 words × 16 bits
· Incorporates data delay RAM.
Delay RAM
: 4096 words × 16 bits (64 kbits)
· The microcontroller interface can be selected between Standard Transmission mode and I2C bus mode.
· CMOS silicon structure supports high speed.
· The package is a 100-pin flat package.
1 2002-02-05
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Pages | Pages 44 | ||
Télécharger | [ TC9447F ] |
No | Description détaillée | Fabricant |
TC9447F | Single-Chip Audio Digital Signal Processor | Toshiba Semiconductor |
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