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參數(shù)資料
| 型號： | TDA9875 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | Digital TV Sound Processor DTVSP |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP64 |
| 文件頁數(shù)： | 82/92頁 |
| 文件大小： | 279K |
| 代理商： | TDA9875 |
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1998 Feb 13
82
Philips Semiconductors
Preliminary specification
Digital TV Sound Processor (DTVSP)
TDA9875
10.4.9.2
Definition
Table 107
Subaddress 253
10.4.10 D
EVICE IDENTIFICATION CODE
10.4.10.1 Description
There will be several devices in the digital TV sound
processor family, with TDA9875 being the first member.
This byte is used to identify the individual family members
purely for Philips internal use.
The first version will have the identification 00000000.
10.4.10.2 Definition
Table 108
Subaddress 254
10.4.11 S
OFTWARE IDENTIFICATION CODE
10.4.11.1 Description
It is likely that during the life time of this family of devices
several versions of the DSP software will be made, e.g., to
accommodate new application concepts, respond to
customer wishes, etc. This byte is used to identify the
different releases purely for Philips internal use.
The first version will have the identification 00000000.
MSB
LSB
B7
B6
B5
B4
B3
B2
B1
B0
MSB
LSB
B7
B6
B5
B4
B3
B2
B1
B0
10.4.11.2 Definition
Table 109
Subaddress 255
10.5
Expert mode
In addition to the slave receiver and slave transmitter
modes previously described, there is a special ‘expert’
mode that gives direct write access to the internal CRAM
of the DSP.
In this mode, transferred data contain 12-bit-wide
coefficients. As those coefficients bypass on-chip
coefficient look-up tables for many functions, they directly
influence the processing of signals within the DSP.
This mode must be used with great care. It can be used to
create user-defined characteristics, such as a tone control
with different corner frequencies or special boost/cut
characteristics to correct the low-frequency loudspeaker
and/or cabinet frequency responses.
MSB
LSB
B7
B6
B5
B4
B3
B2
B1
B0
Table 110
General format for entering the expert mode and writing coefficients into the TDA9875
Table 111
Explanation of Table 110
S
SLAVE ADDRESS
0
ACK
10000000
ACK
CRAM ADDRESS
ACK
DATA
ACK
DATA
ACK
P
BIT
FUNCTION
S
SLAVE ADDRESS
0
ACK
10000000
CRAM ADDRESS
DATA
P
START condition
7-bit device address
data direction bit (write to device)
acknowledge
pattern to enter the expert mode
start address of coefficient RAM to write to
data byte containing part of a coefficient
STOP condition
相關PDF資料 |
PDF描述 |
|---|---|
| TDA9965 | 12-bit, 5.0 V, 30 Msps analog-to-digital interface for CCD cameras |
| TDZ10 | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| TDZ11 | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| TDZ12 | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| TDZ13 | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9875A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
| TDA9875AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
| TDA9875AH/V2,557 | 功能描述:IC SOUND PROC DGTL TV 64QFP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻處理 系列:- 其它有關文件:STA321 View All Specifications 標準包裝:1 系列:Sound Terminal™ 類型:音頻處理器 應用:數(shù)字音頻 安裝類型:表面貼裝 封裝/外殼:64-LQFP 裸露焊盤 供應商設備封裝:64-LQFP EP（10x10） 包裝:Digi-Reel® 其它名稱:497-11050-6 |
| TDA9880 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Alignment-free multistandard vision and FM sound IF-PLL demodulator |
| TDA9880T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Alignment-free multistandard vision and FM sound IF-PLL demodulator |
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