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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189380473003 i$ h: g, z" Y7 J. l4 h2 i# }4 A
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。
, R, n8 x- z1 t* lMS1808 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。
/ ^ a3 D: t; m主要特点
9 V# v+ g' o2 C) ^- W9 N4 A线性相位抗混叠数字滤波器1 _ b( U1 I) x( x, i5 F
单端输入
% Z d% `! q, Z* e带失调电压消除的数字高通滤波器
+ I* V& a4 O! P( h信噪失真比：85dB4 p4 ^( ]( E$ [# J! a9 t
动态范围：95dB
7 q7 L/ g3 Q% d" `- P信噪比:95dB; @$ t' ~; h+ n% x9 v
采样速率 8kHZ 到 96kHz6 x2 s2 }+ M" O8 L# {: c
主时钟：1 q: k* H3 u* x% [6 P
256fs/384fs/512fs/768fs7 b1 @* ?3 q* }9 y7 {- N
(8kHz ~ 48kHz)( l, `$ r7 }$ @+ z. V
256fs/384fs8 W8 o2 w$ B8 R5 w$ x
(48kHz ~ 96kHz)
6 c) f! R! {# p. q! A& |主机/从机模式
& ?6 [$ p- }% o, `0 Z; Y8 h6 D音频接口：24 位最高有效位对齐/ I 2S d; Y. F7 _: z0 n
电源：4.5 ~ 5.5V 模拟，2.7 ~ 5.5V 数字. f* m1 S9 `; x4 E
温度范围 -20 ~ 85℃) G1 o4 j; T5 r; a( D/ V; g
TSSOP14 封装
! ^; P8 i( s4 T7 a0 w, R应用3 Y) x1 j8 f# n
DVD 录音机+ m$ J3 P: [! {! B/ I* l
数字 TV8 J7 z+ P- s2 ~$ O9 r y2 _
CD 录音机
& F1 y) A% `' w$ h+ N6 `8 N CThe 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
4 [# _% o' I4 N0 k$ a% R+ h: tCS8406 accepts audio and digital data, which is thenmultiplexed, encoded, and driven onto a cable.
8 Z* c: e* p( x2 I& L5 rThe 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% b, u3 f9 ?: F, O
may 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.
1 e* x4 h3 V+ }* f* LThe 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. Please
2 q* v0 s. ?- M! }" @refer to “Ordering Information” on page 34 for completedetails.
+ l2 p0 ]7 W1 X1 t2 CTarget applications include A/V Receivers, CD-R, DVD: K; M* z: ~7 y) o6 Q5 k! E2 }
receivers, digital mixin g consoles, effects processors,
/ c+ {$ S& n( Z% {, `( Eset-top boxes, and computer and automotive audio systems
1 I. I/ M( s5 j7 ~$ N
4 S/ R2 l e6 t, ^" y; JComplete EIAJ CP1201, IEC-60958, AES3,+ s7 a. v1 l$ |+ o3 A# \8 @
S/PDIF-compatible Transmitter2 B; M$ F4 i3 i8 f
3 I5 B5 ^* _- [) J8 C4 ^( y+3.3 V or 5.0 V Digital Supply (VD)) O$ x1 O& d) \+ {1 }/ h
/ G) h S; {7 |+ Z+ o" k
+3.3 V or 5.0 V Digital InteRFace (VL)
6 i/ z1 T2 M7 [4 H0 W* |* n/ [, I* u& F9 _
On-Chip Channel Status and User Bit Buffer
3 \5 X2 u5 D0 l3 j+ pMemories Allow Block-Sized Updates
+ x+ Z0 }0 l) ?8 ]
- I8 K; x5 s; TFlexible 3-Wire Serial Digital Audio Input Port; p0 q& V8 M, o' ]) D0 O* I9 ]
& g- c x" `: Q3 Y fUp to 192-kHz Frame Rate5 B' v4 `. R9 n3 t- g! }# C
5 ?9 x5 E. E: N% \& [2 }
Microcontroller Write Access to Channel Status4 q9 k* d2 I! e2 H
and User Bit Data! f0 {* }5 N* }7 Z' W7 U
' ^" K! Z7 H( w' F
On-Chip Differential Line Driver- B8 U" w2 \' o+ L# L; Q5 h
) Y, a- _/ J i+ vGenerates CRC Codes and Parity Bits
% Y: W% c7 w( p, i4 t8 S) K' }7 b P5 W% N# s8 N
Stand-Alone Mode Allows Use without a4 }; m/ ]4 {" c9 v8 H; ]
Microcontroller
0 m' m' J% b5 |0 V3 B/ Y$ u8 H
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发表于 2021-10-28 16:05
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