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音频光纤同轴发射器方案可以由CS8406+MS1808来做成。具体以下为音频光纤同轴发射芯片CS8406和音频ADC芯片MS1808详细介绍。深圳锦宏世纪/李先生18938047300" B& G) j! S' ?: X" |5 P; s7 z
MS1808 是带有采样速率 8kHz ~ 96kHz 的立体声 A/D 转换器,适合于面向消费者的专业音频系统。1 F4 c: K9 R& J6 V5 @* |
MS1808 通过使用增强型双位 技术来实现其高精度的特点。MS1808 是单端的模拟输入所以不需要外部器件。音频接口有两种类型(最高有效位对齐, I 2S )适合用于像 DTV,DVR 和 AV 接收器的系统。/ N2 F6 V: @5 a* Y
主要特点
9 {5 X6 \# q9 f; }3 @线性相位抗混叠数字滤波器% A. Q! H# V" i9 d! X
单端输入
0 L: C# Q( Q8 W2 @& c带失调电压消除的数字高通滤波器* {) p" l; y B4 W/ Z7 M# a
信噪失真比:85dB
0 X. h" g' u/ q! r动态范围:95dB% l& J. {& ~, X, w2 W: m3 ?& x
信噪比:95dB
; W, C& V* W" }. G8 S: A采样速率 8kHZ 到 96kHz
/ r, ?8 A8 {9 }; I6 Y6 D主时钟:
# Y" ]. E; A/ ^& m) H6 P256fs/384fs/512fs/768fs
( \# D# w0 f# r6 N# a# z(8kHz ~ 48kHz)/ V- B0 \2 Q4 a+ {8 U5 _
256fs/384fs6 k) K. I7 C; ]3 b* T3 I
(48kHz ~ 96kHz)
' C% y* F4 H( s7 s9 C主机/从机模式8 _" x- U2 s; o% |1 R
音频接口:24 位最高有效位对齐/ I 2S
2 G, g( v& Y6 Q, J% o& k6 L0 c电源:4.5 ~ 5.5V 模拟,2.7 ~ 5.5V 数字/ l3 I' P R( T! x) A; y" c) D
温度范围 -20 ~ 85℃
& G. t; S4 O) I2 ?) lTSSOP14 封装) y2 T; j7 t2 x, e0 f) g
应用
' n9 \: Y N% m/ U: f! V2 VDVD 录音机+ R _$ K0 w4 e7 r
数字 TV& a; P6 J' g* k% H8 |
CD 录音机
1 Q' k% b* j5 wThe CS8406 is a monolithic CMOS device which encodes and transmits audio data according to the AES3,IEC60958, S/PDIF, o r EIAJ CP1201 standards. The
0 w, |. Z4 u9 V* h7 ~/ J% ICS8406 accepts audio and digital data, which is thenmultiplexed, encoded, and driven onto a cable.
; T+ M4 }: ]3 ~" k- lThe audio data is input through a configurable, 3-wireinput port. The channel status and user bit data are input through an SPI™ or I2C® microcontroller port, and
9 S3 @+ u) n6 E$ omay be assembled in block-sized buffers. For systemswith no microcontroller, a Stand-Alone Mode allows direct access to channel status and user bit data pins.- |: N( o% a4 P
The CS8406 is available in a 28-pin TSSOP and SOICpackage for both Co mmercial (-10o to +70oC) andAutomotive grade (-40o to +85oC). The CDB8416Demonstration board is also available for deviceevaluation and implementation suggestions. Please4 _/ M! p; p. ?6 l0 B0 g
refer to “Ordering Information” on page 34 for completedetails.1 }1 l$ b3 q. d3 W) [# r4 I# W
Target applications include A/V Receivers, CD-R, DVD
u& V$ N$ Y/ s4 r& w1 P% h2 rreceivers, digital mixin g consoles, effects processors,
' y& L0 O: H6 q+ e: u8 g- jset-top boxes, and computer and automotive audio systems* r$ o( c8 v2 W7 m4 @1 A. L
, a, D& C z- C& uComplete EIAJ CP1201, IEC-60958, AES3,: J; j! o: y9 @: z; g) v
S/PDIF-compatible Transmitter
, Q. |9 \# [( y5 _0 |2 `9 a$ Z K3 n& s: {7 Q
+3.3 V or 5.0 V Digital Supply (VD)
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+3.3 V or 5.0 V Digital InteRFace (VL)
@4 [5 Q* m$ F6 W& q! H6 B! }; W! D1 E, N# {
On-Chip Channel Status and User Bit Buffer) H9 G4 i8 P9 z8 g) H2 B
Memories Allow Block-Sized Updates4 ?1 |" y# n9 p q- g. M j: F
- C# b9 T* y- m( @/ f5 Q; M) XFlexible 3-Wire Serial Digital Audio Input Port
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Up to 192-kHz Frame Rate
3 l) j, f( d, B8 O2 G3 L7 p) K" s+ l0 Z
Microcontroller Write Access to Channel Status
" D& e7 y! D. g5 h% k7 L; ^0 b s9 Kand User Bit Data
- Z8 o7 ^6 s/ a& T0 \) U8 x: L! m+ x) O
On-Chip Differential Line Driver6 r9 P, x2 w% ]$ P* I5 T) `
* d/ r3 d$ R! y f
Generates CRC Codes and Parity Bits. N+ J1 e+ e( `% h5 F" ^! _
, s' V+ u5 s- E7 ]2 \ ?+ _Stand-Alone Mode Allows Use without a! m0 t* I; K) N6 W# c" j5 Q
Microcontroller' c: H+ U% `; u9 W: O* G/ A
& _3 [' q' }; w' h, \+ v
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