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[寻求合作]音频传输模块,做出口

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安防幼儿园学生

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发表于 2007-5-27 20:29:37 | 显示全部楼层 |阅读模式

6 x6 Q* R7 H1 x6 d客户要求如下,如果哪家工厂可以做,请和我联系
& x/ `4 D: p$ e: w: s > The application that we have in mind is similar to others that we commonly
9 l! J7 X9 ^) w% J > have. If we were to pay for FCC approval, we would want to use the modem
4 Y" J: `' p* |. h( V2 v; q3 _> units in all similar applications under the same approval number.
% m* r6 m6 X, o9 ~, D( L > Therefore, we would like to be able to configure the units to a specific
; P+ q0 |" N6 L$ S% _6 e! `> application. For the business that we do, this approach will yield more
7 p' s# e# p& p! Y> sales based on the same product and approval. We are interested in the
9 G5 l9 \9 B+ U > following specifications:
- w9 H0 r" U% t* b, i>
, B" G9 O4 ?% }) D6 N u. Q& @> - 2 inputs at the Transmitter with three possibilities;
" t) T+ Y+ q5 m# n9 V5 E( w> 2 analog
0 z4 b/ M2 @) ~1 y8 S; V+ E8 m; t> 2 digital
% W1 Z* X! Y1 ^9 F& _# | > 1 analog and 1 digital
6 E& f, H0 }/ K& D>
/ O$ ^ H4 r& {# z, @$ i" @) [> - 2 outputs at the Receiver with three possibilities to match inputs
' X" |6 x4 S7 n5 g: F( Q5 l: n>
2 ^9 I6 e/ @4 ~, ]7 N' ^9 p5 ?5 U> - Ability to configure/define analog Transmitter input ranges through
; a) }) `& S; P: `* _& M5 c > simple programming method to correspond with full-range analog Receiver
) V0 X+ Q( C) F, c5 E0 S3 `, n > outputs (0 - full voltage).
6 d" r' u8 P$ ~& G" Y2 |>
" m/ y6 G8 B& {* O0 v, e$ p> - Ability to configure and set sample rates for the inputs.
7 C+ M/ n1 s3 C! X4 B6 {>
' v& Z6 I/ e0 t! u+ K, | ~ > - Digital output on Transmitter that turns on during the sampling period.
6 {3 X5 @: x! Q- v3 |6 H >
7 h& C |/ }$ a X- w) j( \, ^> - Ability to configure a power saving Sleep Mode in the Transmitter by
! j# l; T( F; i5 _ g! A0 d8 l- @> both software control and input hardware control.
8 C0 R# V$ P+ F, s$ J0 f>
1 T2 T- L0 ^% p6 W s2 S& i > In order to configure the units, we would need a way to make the
/ `2 d) m' s6 I > settings. This would preferably be from a computer terminal so that
: }! F+ |8 S5 J6 I! H0 R> configurations can be saved or easily duplicated for production volumes.
; O, A+ @' Q" U! \1 u/ V& C> The units should be small and compact with shielding, and able to mount
' ~) J; m5 G* B2 N1 [7 m- z/ d" J> to a printed circuit board with header connector.
, ~6 ?8 c4 T0 n >
1 R+ h/ I' h( o4 D; S: Y5 @. f4 G > At this time, we are interested in samples of a pair of modems that
* U x3 Y3 J5 g W2 d3 g2 e* h6 K; W> might be similar to this proposed system. We do not expect that you
; l. W: k8 c; n > provide all of these specifications at this time. I can describe our
' v# n9 A" l0 s' O8 X1 @> immediate application needs in the next email if this project is of
" {3 U0 X$ K( `2 @' \> interest to you. Perhaps you can make the samples by those
$ S8 H u) c7 L/ {: C; d. N6 T> specifications. This will allow us to test your radios before we move
2 |0 P1 @( e1 i0 `2 X& E > forward. We are interested in your 900MHz radio to start.
" \# f( _% z" G6 E
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