參數(shù)資料
型號(hào)： CS8413-CS
廠商： Electronic Theatre Controls, Inc.
英文描述： 96 KHZ DIGITAL AUDIO RECEIVER
中文描述： 96 kHz的數(shù)字音頻接收器
文件頁(yè)數(shù)： 18/38頁(yè)
文件大小： 646K
代理商： CS8413-CS
CS8413 CS8414
DS240F1
25
upon the C0 professional/consumer bit. The infor-
mation reported is shown in Table 7.
Table 7. Channel Status Pins
Professional Channel Status (C0 = 0)
When C0 is low, the received channel status block
is encoded according to the professional/broadcast
format. The Ca through Ce pins are defined for
some of the more important professional bits. As
listed in Table 7, Ca is the inverse of channel status
bit 1. Therefore, if the incoming channel status bit
1 is 1, Ca, defined as C1, will be 0. C1 indicates
whether audio (C1 = 1) or non-audio (C1 = 0) data
is being received. Cb and Cc, defined as EM0 and
EM1 respectively, indicate emphasis and are en-
coded versions of channel status bits 2, 3, and 4.
The decoding is listed in Table 8. Cd, defined as
C9, is the inverse of channel status bit 9, which
gives some indication of channel mode. (Bit 9 is
also defined as bit 1 of byte 1.) When Ce, defined
as CRCE, is low, the CS8414 calculated CRC value
does not match the received CRC value. This signal
may be used to qualify Ca through Cd. If Ca
through Ce are being displayed, Ce going low can
indicate not to update the display.
Table 8. Emphasis Encoding
Consumer Channel Status (C0 = 1)
When C0 is high, the received channel status block
is encoded according to the consumer format. In
this case Ca through Ce are defined differently as
shown in Table 7. Ca is the inverse of channel sta-
tus bit 1, C1, indicating audio (C1 = 1) or non-audio
(C1 = 0). Cb is defined as the inverse of channel
status bit 2, C2, which indicates copy inhibit/copy-
right information. Cc, defined as C3, is the empha-
sis bit of channel status, with C3 low indicating the
data has had pre-emphasis added.
The audio standards, in consumer mode, describe
bit 15, L, as the generation status which indicates
whether the audio data is an original work or a copy
(1st generation or higher). The definition of the L
bit is reversed for three category codes: two broad-
cast codes, and laser-optical (CD’s). Therefore, to
interpret the L bit properly, the category code must
be decoded. The CS8414 does this decoding inter-
nally and provides the ORIG signal that, when low,
indicates that the audio data is original over all cat-
egory codes.
SCMS
The consumer audio standards also mention a serial
copy management system, SCMS, for dealing with
copy protection of copyrighted works. SCMS is de-
signed to allow unlimited duplication of the origi-
nal work, but no duplication of any copies of the
original. This system utilizes the channel status bit
2, Copy, and channel status bit 15, L or generation
status, along with the category codes. If the Copy
bit is 0, copyright protection is asserted over the
material. Then, the L bit is used to determine if the
material is an original or a duplication. (As men-
tioned in the previous paragraph, the definition of
the L bit can be reversed based on the category
codes.) There are two category codes that get spe-
cial attention: general and A/D converters without
C or L bit information. For these two categories the
SCMS standard requires that equipment interfacing
to these categories set the C bit to 0 (copyright pro-
Pin
Professional
Consumer
C0
0 (low)
1 (high)
Ca
C1
Cb
EM0
C2
Cc
EM1
C3
Cd
C9
ORIG
Ce
CRCE
IGCAT
EM1 EM0 C2 C3 C4
Emphasis
0
1
CCITT J.17 emphasis
0
1
0
50/15
s emphasis
1
0
1
0
No Emphasis
1
0
Not Indicated
相關(guān)PDF資料
PDF描述
CS8414 96 KHZ DIGITAL AUDIO RECEIVER
CS8414-CS 96 KHZ DIGITAL AUDIO RECEIVER
CSB7152-01 70 V, SILICON, PIN DIODE
CSBFB1M00J58-R1 CERAMIC RESONATOR, 1 MHz
CSBLA400KECE-B0 CERAMIC RESONATOR, 0.4 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CS8413-CSR 功能描述:音頻 DSP IC 96 kHz Digital Audio Receivers RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube
CS8414 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:96 KHZ DIGITAL AUDIO RECEIVER
CS8414CS 制造商:CRYS 功能描述: 制造商:The Cherry Corporation 功能描述:
CS8414-CS 制造商:Rochester Electronics LLC 功能描述: 制造商:Cirrus Logic 功能描述:
CS8414-CSR 制造商:Rochester Electronics LLC 功能描述: 制造商:Cirrus Logic 功能描述:
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