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PDF TC9456F Data sheet ( Hoja de datos )
| Número de pieza | TC9456F | |
| Descripción | Single Chip Surround LSI | |
| Fabricantes | Toshiba | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TC9456F (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC9456F
Single Chip Surround LSI with a Built-in SRS
TC9456F
TC9456F is single Chip surround LSI with a built-in SRS for
portable equipment, Mini compo.
As built-in ADC/DAC, Surround, Digital equalizer, bass boost
and SRS of 3D sound reproduction technology, this IC constructs
DSP function.
Features
• Built-in 3channel AD converter.
THD: −65dB S/N: 78dB (typ.)
Built-in ope amp for pre-filter.
• Built-in 2channel DA converter.
Weight: 1.07 g (typ.)
THD: −85dB S/N: 93dB (typ.)
Built-in 3rd analog filter.
• Input: 3 analog channel, 1 digital stereo port.
Digital input format: MSB first 16, 18, 20 bit effective data before change point of LRCK or I2S.
• Output: 2 analog output/1 digital stereo port.
Digital output format: MSB first 16, 20 bit effective data before change point of LRCK or I2S.
• Built-in 64 Kbit delay RAM.
• DSP function
• SRS: Eliminate existing sweet spot and restore spatial information, direction cues and other sonic nuance
which are either missing or altered during and playback process.
Correspondence only for fs = 44.1 kHz with SRS.
• Surround: Real surround to use delay, simulate sound field of hole, church, stadium and etc.
• Bass boost: Dynamic surround to respond an input
• 3 Band parametric equalizer: Equalizer of a high precision of 18 bit coefficient
• Package is QFP 44 pins.
Note:
“The word ‘SRS’ and the SRS symbol ( ● ) are registered trademarks of SRS Labs, Inc.”
“Incorporates the SRS (Sound Retrieval System) under license from SRS Labs, Inc.”
The Sound Retrieval System (SRS) technology rights incorporated in the TC9456F are owned by SRS Labs, a
US Corporation and licensed to Toshiba Semiconductor. The SRS technology is protected under United States
Patent Nos. 4,748,669 and 4,841,572 with numerous additional issued and pending foreign patents. The
trademarks “SRS” and the SRS symbol are registered in the United States and selected foreign countries.
In order to purchase and implement the TC9456F, all customers must enter into a license agreement directly with
SRS Labs for payment of royalties and to ensure proper trademark usage. Neither the purchase of the TC9456F,
nor the corresponding sale of audio enhancement equipment conveys the right to sell commercialized recordings
made with the SRS technology.
1 2003-07-03
1 page  
2.2 Data Input Format
Data input format is Table 2.2.1 and Figure 1.
Selecting use IBIT1 and IBIT2. (µ-COM I/F)
Table 2.2.1 Data Input Format
SYNM2 SYNM1
00
00
00
00
01
01
01
01
10
10
10
10
11
11
11
11
IBIT2
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
IBIT1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
MSBfirst 16 bit
MSBfirst 18 bit
MSBfirst 20 bit
IIS MAX20 bit
MSBfirst 16 bit
not use
not use
not use
MSBfirst 16 bit
MSBfirst 18 bit
MSBfirst 20 bit
not use
MSBfirst 16 bit
MSBfirst 18 bit
MSBfirst 20 bit
IIS MAX20 bit
Format
TC9456F
BCKI
32 fs~128 fs
36 fs~128 fs
40 fs~128 fs
64 fs only
32 fs
32 fs
32 fs
32 fs
48 fs
48 fs
48 fs
48 fs
64 fs
64 fs
64 fs
64 fs
Figure 1 Example Data Input Timing (RLS = “H”, SYNM1 = “H”, SYNM2 = “H”)
2.3 Digital Zero Detect Function
Table 2.3.1 Digital Zero Detect Judge Time
fs
32 kHz
44.1 kHz
Judge Time
1024 ms
743 ms
Note 3: Correspondence only for 44.1kHz with SRS
48 kHz
683 ms
5 2003-07-03
5 Page 
Maximum Ratings
TC9456F
Characteristics
Supply voltage
Input voltage
Power dissipation
Operating temperature
Storage temperature
Symbol
VDD
Vin
PD
Topr
Tstg
Rating
−0.3~6.0
−0.3~VDD + 0.3
1500
−40~85
−55~150
Unit
V
V
mW
°C
°C
Electrical Characteristics (DC)
Characteristics
Operating supply voltage
Power supply current
Input voltage
“H” level
“L” level
Input current
“H” level
“L” level
“H” level
Output current 1
“L” level
“H” level
Output current 2
“L” level
“H” level
Output current 3
“L” level
Pull-up resistance
Symbol
VDD
IDD
VIH
VIL
IIH
IIL
IOH1
IOL1
IOH2
IOL2
IOH3
IOL3
RUP
Test
Circuit
Test Condition
Min Typ. Max Unit
Ta = −40~85°C
4.5 5.0 5.5
V
XI = 16.9 MHz, Output No-load 48 70 mA
Digital input terminal
VDD ×
0.8
VDD
V
0
VDD ×
0.2
Digital input terminal
1.0
µA
−1.0
LRCKO, BCKO, SDO
−3.5
mA
2.0
MCK1, MCK2
−5.0
mA
3.0
EXTO
−2.0
mA
2.0
RESET , TEST
50 kΩ
Electrical Characteristics (AC)
AD Converter
Characteristics
Maximum input level
S/(N + D) ratio
Total harmonic distortion + noise
Cross-talk
Symbol
Test
Circuit
Test Condition
Min Typ. Max Unit
Ain
S/N (AD)
VDD = 5.0 V
−30dB 1 kHz
Sine wave input
1.1 Vrms
68 78 dB
(Note 5)
THD (AD)
−0dB 1 kHz
Sine wave input
−65 −55 dB
CT (AD)
−68 −60 dB
Note 5: A-weight: ON (typ.)
11 2003-07-03
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet TC9456F.PDF ] | |
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