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PDF TC9446F Data sheet ( Hoja de datos )
| Número de pieza | TC9446F | |
| Descripción | Audio Digital Processor for Decode of Dolby Digital (AC-3) / MPEG2 Audio | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TC9446F (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC9446F
Audio Digital Processor for Decode of Dolby Digital (AC-3), MPEG2 Audio
TC9446F
TC9446F is the various digital signal processor for decoding. It
contains the decode processing program which embraced
encoding signals, such as Dolby Digital (AC-3)/Pro Logic (Note 1),
MPEG2 audio and DTS (Note 2).
Decoding of Dolby Digital or MPEG2 audio is made with a
single chip. Moreover, an external memory can be connected to
the TC9446F to decode DTS.
Features
• Dolby digital (AC-3) or MPEG2 audio decode
Acceptable bit rate upto 640 kbps
Weight: 1.57 g (typ.)
• Audio interface
4 output port, 2 input port (2 port of LRCK and BCK)
DIR (digital audio interface receiver) built-in
DIT (digital audio interface transmitter) built-in
DIR and DIT are available upto 96 kHz sampling of 2 channel
• Operating clock: DLL oscillator upto 6th times for DSP clock
• Instruction cycle: 20 ns/1 instruction at 50 MIPS operation
• DSP
Processor: 24 bit × 24 bit + 51 bit multiplier and adder, 51 bit ALU
Data bus: 24 bit × 3
Data RAM: 12 k word
Coeficient ROM: 4 k word
Program ROM: 12 k word
Program RAM: 128 word
• MCU interface: Serial interface or I2C bus interface
• Others
It is possible to connect external RAM, 256 k or 1 M SRAM
External interruption input terminal
Flag input terminal: 4 inputs
General-purpose output port: 8 outputs (The ports can be used as interrupt outputs to MCU and logic control
outputs.)
incorrect operation detect
• Operating Voltage: 3.0 ± 0.3 V
• In CMOS structure and high-speed processing
• 100 pin flat package design
Note 1: “Dolby”, “Pro Logic”, and the double-D symbol are trademarks of Dolby Laboratories.
Note 2: “DTS” and “DTS Digital Surround” are registered trademarks of Digital Theater Systems, Inc.
Note 3: Since this product has a weak terminal in serge voltage, please advise handling it enough.
1 2002-04-18
1 page  
Pin
No.
Symbol
I/O
Description of Pin Functions
36 TSTSUB0
I Test sub input-0 (L: test, H: normal operation)
37 FCONT O Frequency control output for VCO circuit
38 TSTSUB1
I Test sub input-1 (L: test, H: normal operation)
39 TSTSUB2
I Test sub input-2 (L: test, H: normal operation)
40 PDO O Phase detect signal output
41 VDDA Analog power supply
42 PLON
I Clock selection input (L: external clock, H: VCO clock)
43 AMPI
I Amplifier input for Low pass filter
44 AMPO O Amplifier output for Low pass filter
45 CKI
I External clock input
46 VSSA Analog ground
47 CKO O DIR clock output
48 LOCK O VCO lock output
49 VSS Digital ground
50 WR
O Write signal output for external SRAM
51 OE O Enable signal output for external SRAM
52 CE O Chip enable signal output for external SRAM
53 VDD Digital power supply
54 IO7 I/O Data I/O-7 for external SRAM
55 IO6 I/O Data I/O-6 for external SRAM
56 IO5 I/O Data I/O-5 for external SRAM
57 IO4 I/O Data I/O-4 for external SRAM
58 IO3 I/O Data I/O-3 for external SRAM
59 IO2 I/O Data I/O-2 for external SRAM
60 IO1 I/O Data I/O-1 for external SRAM
61 IO0 I/O Data I/O-0 for external SRAM
62 VSS Digital ground
63 AD0 O Address output-0 for external SRAM
64 AD1 O Address output-1 for external SRAM
65 AD2 O Address output-2 for external SRAM
66 AD3 O Address output-3 for external SRAM
67 AD4 O Address output-4 for external SRAM
68 AD5 O Address output-5 for external SRAM
69 AD6 O Address output-6 for external SRAM
70 AD7 O Address output-7 for external SRAM
71 VDD Digital power supply
72 AD8 O Address output-8 for external SRAM
73 AD9 O Address output-9 for external SRAM
74 AD10 O Address output-10 for external SRAM
75 AD11 O Address output-11 for external SRAM
76 AD12 O Address output-12 for external SRAM
77 AD13 O Address output-13 for external SRAM
5
TC9446F
Remarks
Pull-up resistor,
Schmitt input
Tri-state output
Pull-up resistor,
Schmitt input
Pull-up resistor,
Schmitt input
Tri-state output
Pull-up resistor,
Schmitt input
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
Pull-up resistor
2002-04-18
5 Page 
TC9446F
3) Read-out of 24 bit data
The number of words of data read while data required for the 16 bit address in a 24 bit command is
set up and R/W bit is set to “H”, when reading data of TC9446F from a MCU during program
operation is set up.
And, after transmitting a 24 bit command, MIACK = “L” is checked and 24 bit data of the required
number of words is read.
MIACK = “L” is checked after command transmission for waiting to set data which should be read
to data buffer. The procedure of read-out of 24 bit data is shown in Figure 4.
MICS = “L”
Checking of MIACK = “L”
(waiting for becoming to MIACK = “L” at the MIACK = “H”)
Write of 24 bit command
(read of data = xxxx1xh)
Checking of MIACK = “L”
(waiting for becoming to MIACK = “L” at the MIACK = “H”)
A 16 bit address and a transmission word
number are set up.
Read of 24 bit data (1)
Read of 24 bit data (2)
It is possible to read out the 24 bit data
until 16 word maximum.
Read of 24 bit data (n)
MICS = “H”
It finished to read of the data
Figure 4 Procedure of Read-Out of 24 Bit Data
11 2002-04-18
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TC9446F.PDF ] | |
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