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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

& s) o$ N. T5 g% e# s5 t' [3 P 客户要求如下,如果哪家工厂可以做,请和我联系
3 Z& |, v. K: f- K+ y( C> The application that we have in mind is similar to others that we commonly
G, C i, I1 S; ]. \6 D> have. If we were to pay for FCC approval, we would want to use the modem
% i& b3 H# v4 M8 c > units in all similar applications under the same approval number.
' D" p0 G7 F" r( ~. t- ~3 x > Therefore, we would like to be able to configure the units to a specific
1 Q/ t. X8 t; H* P" f, d1 T) a > application. For the business that we do, this approach will yield more
% K& h4 H( w* u3 Q4 H: t+ I> sales based on the same product and approval. We are interested in the
$ V, F- S) V; {) l6 n, A> following specifications:
! w3 @+ w( [1 Z, [/ G8 S6 I2 a>
5 {0 l& L) f3 Y# U! X> - 2 inputs at the Transmitter with three possibilities;
6 m& |8 @2 g, e$ r > 2 analog
) P6 E/ m" l8 q. e* ~; h, m, f7 Y& V> 2 digital
; Q6 a: P7 e2 E! f8 I) U+ ]> 1 analog and 1 digital
9 w8 q7 `! v% p' I* Q>
3 U7 J0 v/ x" s3 z4 q& b) c > - 2 outputs at the Receiver with three possibilities to match inputs
/ K1 w. L4 [( c, u5 U3 R; o >
( _ t, M; z! J* v> - Ability to configure/define analog Transmitter input ranges through
. W" M6 `2 M; h- I+ H7 k% a> simple programming method to correspond with full-range analog Receiver
+ L% r5 s$ e" n2 M2 f> outputs (0 - full voltage).
& i5 W, Z& o! y>
! e; m! g% S# B$ L) B& z4 d* ~ > - Ability to configure and set sample rates for the inputs.
M+ R+ H; I9 ~8 S( Y5 l3 J8 Z>
% {" s3 }5 d! |0 k# p/ @ > - Digital output on Transmitter that turns on during the sampling period.
" k3 Z+ W$ {4 q& Z* _ >
5 \8 `, B* L3 p( y( x/ l! j0 q> - Ability to configure a power saving Sleep Mode in the Transmitter by
& Q! n! s" W" Q* T4 z> both software control and input hardware control.
7 s, D F( m/ t3 {$ I >
# c, r% v: S. [% A1 S3 z > In order to configure the units, we would need a way to make the
) A( e! B1 E* J5 l2 y; i> settings. This would preferably be from a computer terminal so that
" C8 P: q/ O; a4 d3 `$ r9 I: y> configurations can be saved or easily duplicated for production volumes.
5 H$ u8 [8 r, w6 a% }0 T( f; z; L @: { > The units should be small and compact with shielding, and able to mount
: s3 F0 }: V- z4 S+ s$ C> to a printed circuit board with header connector.
' V: K" |4 q# P5 A>
) \1 A& P4 y, m: B> At this time, we are interested in samples of a pair of modems that
; O4 C) ^% r, w > might be similar to this proposed system. We do not expect that you
, \* l) }$ T* _, H) k, ]; w5 O > provide all of these specifications at this time. I can describe our
( m! n% m% }9 |- e5 l9 C1 R > immediate application needs in the next email if this project is of
3 O' e* q6 ?6 d+ u/ m; y0 P> interest to you. Perhaps you can make the samples by those
* r8 f: C( [( [( i5 @ Y- O. ]: Y> specifications. This will allow us to test your radios before we move
! T4 C+ {9 A3 s+ T) x# t. m- h/ @> forward. We are interested in your 900MHz radio to start.
/ \" j1 ?1 B J; h/ C! X& I
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