參數(shù)資料
型號(hào)： TC9447F
廠商： Toshiba Corporation
元件分類： 數(shù)字信號(hào)處理
英文描述： Single-Chip Audio Digital Signal Processor
中文描述： 單芯片音頻數(shù)字信號(hào)處理器
文件頁(yè)數(shù)： 1/44頁(yè)
文件大小： 635K
代理商： TC9447F
TC9447F
2002-02-05
1
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
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).
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 I
2
C bus mode.
CMOS silicon structure supports high speed.
The package is a 100-pin flat package.
Weight: 1.57g (typ.)
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