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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

+ L# @8 ^ @% d I4 W8 T 客户要求如下,如果哪家工厂可以做,请和我联系
- X7 S6 j. v- d1 W. A> The application that we have in mind is similar to others that we commonly
+ `. h4 `9 t) H> have. If we were to pay for FCC approval, we would want to use the modem
1 S" U6 p$ P! p1 v > units in all similar applications under the same approval number.
6 t" t% P) t1 Q% `( C> Therefore, we would like to be able to configure the units to a specific
+ e K9 q, b5 j" O+ O$ k Z( C5 H; k> application. For the business that we do, this approach will yield more
4 L- p! l0 s9 z> sales based on the same product and approval. We are interested in the
* q: o! A. l2 F) u7 d$ b> following specifications:
^' Y# m. V- b- |& F* m u >
0 E f3 z* M6 f > - 2 inputs at the Transmitter with three possibilities;
/ n6 j% u1 D& ?, q9 }4 |6 c> 2 analog
% d9 Z) {8 b; v > 2 digital
4 e: e) T4 ]1 p0 | > 1 analog and 1 digital
" G- z0 k# W) B$ a" c( K/ H' A>
1 C @, A8 o& V > - 2 outputs at the Receiver with three possibilities to match inputs
/ W" @7 Q$ |0 B>
" ~' |- x* ]! e$ b > - Ability to configure/define analog Transmitter input ranges through
) o0 W4 D7 `9 M& ?; E; o# [$ x > simple programming method to correspond with full-range analog Receiver
6 y& y6 h" [" H4 W/ S1 O% J> outputs (0 - full voltage).
/ \# ^' J e `5 p; g>
2 q9 a, I+ S# J; P* a9 q > - Ability to configure and set sample rates for the inputs.
" q, M9 l' f% ~ >
# z: Q8 z6 f- K/ M- E0 U9 r% y > - Digital output on Transmitter that turns on during the sampling period.
. j Y) ^/ t& S: y/ e >
7 L. @* V; `. x+ g" }> - Ability to configure a power saving Sleep Mode in the Transmitter by
X8 E: _ j6 V. X0 Z6 r > both software control and input hardware control.
) O7 X7 z6 A' D) j/ ?5 S& X* B>
4 _/ f9 z& l7 v+ p' @- T> In order to configure the units, we would need a way to make the
|" v8 R4 G. o> settings. This would preferably be from a computer terminal so that
! V: r8 Y: F9 ~) _) w > configurations can be saved or easily duplicated for production volumes.
5 @) {; G6 M6 Z" t# j3 F > The units should be small and compact with shielding, and able to mount
" O3 O1 A; l% R' l; s6 X/ w' r0 D > to a printed circuit board with header connector.
2 i" Z. P2 Y4 D1 R8 v3 S >
7 U$ G3 o* r/ h8 w7 M> At this time, we are interested in samples of a pair of modems that
/ P% B/ W% W3 ^7 Q+ u > might be similar to this proposed system. We do not expect that you
# U. s. S, _1 S. A: |+ K$ T > provide all of these specifications at this time. I can describe our
) ~) |- R# j2 [1 M > immediate application needs in the next email if this project is of
0 [2 T7 |1 I* G > interest to you. Perhaps you can make the samples by those
9 u# ?8 c6 N* Q' v8 x > specifications. This will allow us to test your radios before we move
& \3 u7 |: a/ b2 g > forward. We are interested in your 900MHz radio to start.
5 X4 m; h2 w6 ~; X$ A
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