Document
TC94A04AF/AFD
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC94A04AF,TC94A04AFD
1 chip Audio Digital Processor
TC94A04AF/AFD is a single-chip audio Digital Signal Processor, incorporating 4 way stereo analog switch, 2 ch AD converter, 4 ch DA converter, and electronic volume for trimming. It is possible to realize many applications, such as sound field control -hall simulation, for example-, digital filter for equalizers, surround, base boost and something.
TC94A04AF
Features
• • • • • • Incorporates a 4 ch-stereo analog switch for AD converter input. Incorporates a 1 ch stereo line-out. Incorporates a 1 bit ∑ ∆-type AD converter (two channels). THD: −82dB (typ.) S/N: 95dB (typ.) Incorporates a 1 bit ∑ ∆-type DA converter (four channels). THD: −86dB (typ.) S/N: 98dB (typ.) Incorporates a trimming analog volume for each output of DA converter. 0dB to −24dB (1dB step) As digital input/output port, this has 3 input port (6 ch) and 1 output port (2 ch), enabling input/output of sampling of 96 kHz/24 bit. Incorporates a built-in digital de-emphasis filter. Incorporates a digital attenuator. Weight QFP60-P-1414-0.80D : 1.08 g (typ.) QFP80-P-1420-0.80B : 1.57 g (typ.)
TC94A04AFD
• • •
Incorporates a boot ROM to set a coefficient automatically, which enables to transfer an initial data from built-in ROM/RAM to registers at the time of resetting Boot ROM: 512 words 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: 384 words × 16 bits Coefficient ROM: 256 words × 16 bits Offset RAM: 16 words × 11 bits Data RAM: 256 words × 24 bits Interface buffer RAM: 32 words × 16 bits Operation speed: 22.5 MIPS (510 step/fs: master clock = 768 fs, fs = 44.1 kHz)
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• • • • •
Note 1: At the time of an analog input, approximately 170 steps (85 step/ch) in 510 step are used for the operation of the decimation filter for AD converters. Incorporates data delay RAM (32 kbits). Delay RAM: 2048 words × 16 bits (32 kbits) The microcontroller interface can be selected between Toshiba original 3 line mode and I2C mode. CMOS silicon structure supports high speed. Power supply is a single 5 V. The package are 60-pin and 80 pin flat package.
1
2001-11-15
TC94A04AF/AFD
Block Diagram/Pin Connection
TC94A04AF
DOUT TST1 TST0 IFDO IFCK DIN0 DIN1 DIN2 32 31 GND I2CS ERR RST VDD 36 35 IFDI
45
44
43
42
41
40
39
38
CS 37
34
33
LIN4 46 LIN3 47 LIN2 48 LIN1 49 RIN4 50 RIN3 51 RIN2 52 RIN1 53 GNDAL 54 OUTL 55 VRAL 56 VDALR 57 VRAR 58 OUTR 59 GNDAR 60
19 kΩ 19 kΩ 19 kΩ 19 kΩ
C1
C1 Lch input Mute SW
MCU Interface Audio serial interface
EBCI/O 30 ELRI/O 29 SYNC 28
C2
C2
C3
20 kΩ 500 Ω
C3
C4
C4
GNDR 27 Delay RAM VDDR 26 GNDA4 25 AI4 24 AO4 23 AOT4 22 VDA34 21 Ch3 DAC circuit AOT3 20 AO3 19 AI3 18 20 kΩ 41.5 kΩ Same as Ch1 DAC circuit 8 kΩ GNDA3 17 VRO2 16 BP BP
VRAL
Rch input Same as Lch input circuit 500 Ω
DSP (I/O Interface) Ch4 DAC circuit Same as Ch1 DAC circuit
27 kΩ
Σ∆ ADC VRAL Lch circuit 41.5 kΩ 15 kΩ 15 kΩ 15 kΩ Σ∆ DAC 15 kΩ 15 kΩ 15 kΩ Ch1 DAC circuit Ch2 DAC Circuit
Same as Ch1 DAC circuit
27 kΩ
Same as Lch circuit
Oscillator circuit
7.8 kΩ 6 7 8
XO GNDX
AOT1
VDA12
VDX
AOT2
AI1
AO1
AO2
AI2
GNDA1
GNDA2
VRO1
XI
BP
BP
2
VRI
1
2
3
4
5
4 kΩ 9
10
11
12
13
14
15
2001-11-15
TC94A04AF/AFD
TC94A04AFD
DOUT EBCI/O 42 41 TST1 TST0 IFDO
IFCK
DIN0
DIN1
DIN2
GND
I2CS
ERR
RST
VDD
IFDI
NC
NC
NC
NC
NC
NC
NC
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
65
LIN4 65 LIN3 66 LIN2 67 LIN1 68 RIN4 69 RIN3 70 RIN2 71 RIN1 72 NC 73 GNDAL 74 OUTL 75 VRAL 76 NC 77 VDALR 78 VRAR 79 OUTR 80
NC
CS
19 kΩ 19 kΩ 19 kΩ 19 kΩ
C1
C1 Lch input Mute SW MCU Interface Audio serial interface
ELRI/O 40 SYNC 39 GNDR 38 500 Ω VDDR 37 Delay RAM NC 36 GNDA4 35 500 Ω DSP (I/O Interface) NC 34 Ch4 DAC circuit AI4 33 AO4 32 NC 31 BP
C2
C2
C3
20 kΩ
C3
C4
C4
VRAL
Rch input Same as Lch input circuit
Same as Ch1 DAC circuit
27 kΩ Ch3 DAC circuit Σ∆ ADC VRAL Lch circuit 15 kΩ 15 kΩ 15 kΩ Σ∆ DAC 15 kΩ 15 kΩ 15 kΩ Ch1 DAC circuit Ch2 DAC circuit Same as Ch1 DAC circuit
AOT4 30 NC 29 VDA34 28 AOT3 27 20 kΩ 41.5 kΩ Same as Ch1 DAC circuit 8 kΩ AO3 26 AI3 25 BP
27 kΩ
Same as Lch circuit
Oscillator circuit
41.5 kΩ
7.8 kΩ
GNDAR
XO GNDX
VDX
NC
NC
NC
NC
NC
AOT1
VDA12
AOT2
AI1
AO1
AO2
AI2
VRO1
NC
GNDA1
GNDA2
VRO2
BP
BP
GNDA3
XI
VRI
1
2
3
4
5
6
7
8
9
10
11
4 kΩ 12
13
14
15
16
17
18
19
20
21
22
23
24
3
2001-11-15
TC94A04AF/AFD
Pin Functions
Pin No. TC94A 04AF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 TC94A 04AFD (Note 3) 2 3 4 5 7 8 9 11 13 14 15 17 18 20 21 23 24 25 26 27 28 30 32 33 35 37 38 39 Symbol I/O Function Remarks
VDX XI XO GNDX GNDA1 AI1 AO1 AOT1 VDA12 AOT2 AO2 AI2 GNDA2 VRO1 VRI VRO2 GNDA3 AI3 AO.