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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

1 p, x) X+ y6 j6 X* i 客户要求如下,如果哪家工厂可以做,请和我联系
& o7 t8 d1 k9 @* x3 z; F> The application that we have in mind is similar to others that we commonly
% \2 C5 W4 t. d. M6 H4 u> have. If we were to pay for FCC approval, we would want to use the modem
5 a4 ]% p* R$ d: e. m; ]; \7 v > units in all similar applications under the same approval number.
N; Y5 \8 f# w; Q5 O6 y > Therefore, we would like to be able to configure the units to a specific
% t' B, n2 h2 ^5 x# o/ U2 @ > application. For the business that we do, this approach will yield more
% f: \& `" |3 V) G1 o1 @% e > sales based on the same product and approval. We are interested in the
6 H/ Y1 `& c% _4 P( Z$ w > following specifications:
1 X4 ^2 H. K! k" P8 E( ?0 |>
" K' B1 O1 X( z0 W6 p3 i> - 2 inputs at the Transmitter with three possibilities;
. R: A& `) G1 l) b! V+ ]: v( c! Y> 2 analog
( w% s( p& p' B > 2 digital
0 E1 q& U T- m/ N4 x > 1 analog and 1 digital
3 |$ o' w8 V$ S* F# {1 f >
6 F' {4 s8 m2 E! y% A> - 2 outputs at the Receiver with three possibilities to match inputs
) P/ E3 A3 X7 n/ o: @3 D: P>
+ X7 ~5 P; v! H$ _0 V0 |1 S8 U> - Ability to configure/define analog Transmitter input ranges through
+ U/ E: ^0 z8 ~, q& _ > simple programming method to correspond with full-range analog Receiver
2 Q7 h+ |* q- G6 O; n0 l> outputs (0 - full voltage).
0 X" O, w% n# I% U- }>
) c& ~4 c1 W; a2 A> - Ability to configure and set sample rates for the inputs.
% ~7 G0 Q$ Y+ Q# u>
2 s: @9 P7 \- `& g > - Digital output on Transmitter that turns on during the sampling period.
/ K3 e4 @ K; k. I* ^6 s C>
, w( g% ?" A6 S6 e( \) x# D! I > - Ability to configure a power saving Sleep Mode in the Transmitter by
+ ]. M% F/ h* n* M' Z% V> both software control and input hardware control.
8 G1 X3 d6 s* | s j >
/ d8 {0 D f& @. Z, }, |4 I3 n > In order to configure the units, we would need a way to make the
" D# a' y; r( T5 Q > settings. This would preferably be from a computer terminal so that
# {' L: x2 p3 S* i' I% i1 Z# C > configurations can be saved or easily duplicated for production volumes.
0 J& Q2 t+ w6 ~+ x. r9 a" p > The units should be small and compact with shielding, and able to mount
3 {- W/ H; h# J$ G > to a printed circuit board with header connector.
1 M: ^% x4 z @ >
+ ~) ~: Q% w: X6 N > At this time, we are interested in samples of a pair of modems that
- R- Q, ~* ~* I> might be similar to this proposed system. We do not expect that you
$ I$ {" y0 ]" |9 I H, v. S> provide all of these specifications at this time. I can describe our
5 m/ K7 |( x! V8 U- P> immediate application needs in the next email if this project is of
c+ x6 D/ u6 @/ B4 T+ x' c > interest to you. Perhaps you can make the samples by those
! ]" h4 T+ }/ u o$ U! o5 g' j$ g > specifications. This will allow us to test your radios before we move
9 ^9 d9 L: f& G, A M- a; q > forward. We are interested in your 900MHz radio to start.
- d$ S/ K$ W& h) p
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