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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

}' f- J5 A5 q0 q6 U客户要求如下,如果哪家工厂可以做,请和我联系
~8 ~5 U& y4 n' I6 I> The application that we have in mind is similar to others that we commonly
& N9 v$ c/ E5 h! g6 w9 m' Q# m1 d2 _ > have. If we were to pay for FCC approval, we would want to use the modem
: J" s9 o( J/ K4 o0 @ v > units in all similar applications under the same approval number.
* q8 X. \7 z$ F> Therefore, we would like to be able to configure the units to a specific
- l1 R! x7 L t1 I. f# O> application. For the business that we do, this approach will yield more
5 K& [! i7 z/ ]7 k* p* h1 n > sales based on the same product and approval. We are interested in the
2 D; \+ F4 t. n8 R# g> following specifications:
/ f/ l- c' L% Y' M0 I6 A>
' S) O- O/ q5 b1 y- q5 L4 C! q > - 2 inputs at the Transmitter with three possibilities;
: k' B9 p# G' `( D7 _ > 2 analog
- B( d0 i$ ^: K; e' C$ ^0 p > 2 digital
% c) d' c5 z, C" R* `> 1 analog and 1 digital
% b2 A8 W0 T% {7 `>
$ |* b0 s* O" ? > - 2 outputs at the Receiver with three possibilities to match inputs
" j# R S) g b4 L5 }- U>
" k$ E' T( M5 r> - Ability to configure/define analog Transmitter input ranges through
3 N7 J3 b7 F/ Z6 }' B > simple programming method to correspond with full-range analog Receiver
% A B% U5 c! d* \+ b3 `8 k9 z4 _> outputs (0 - full voltage).
3 a1 |. b! N4 J, v1 M9 N/ h) L* t! s >
7 Y% G; B- Y& t! u> - Ability to configure and set sample rates for the inputs.
* n. g/ ]" _/ M' j6 U% v>
9 o1 i1 t& t% P: t3 @- ], U> - Digital output on Transmitter that turns on during the sampling period.
^/ w$ N+ J2 N- `) m; J>
2 |1 e( f$ C' c3 z- W) @0 m > - Ability to configure a power saving Sleep Mode in the Transmitter by
( k- J8 V" W" c' {% w4 q> both software control and input hardware control.
, \4 h; G) F1 {: H >
z& M' C# `" M8 `: G- F> In order to configure the units, we would need a way to make the
- B. v3 L, K% l> settings. This would preferably be from a computer terminal so that
5 t8 m* D O/ L- L" n( W. S> configurations can be saved or easily duplicated for production volumes.
( Q0 o5 |$ V' P6 E. C6 H> The units should be small and compact with shielding, and able to mount
" r3 o9 u/ J5 O > to a printed circuit board with header connector.
2 ?' H. ?% y( V/ Y1 `& u>
. j9 n# ^. E1 X+ [0 _ > At this time, we are interested in samples of a pair of modems that
( h; f- t2 J O6 \+ Q> might be similar to this proposed system. We do not expect that you
4 {: y% ?. n5 c. L$ Z- X > provide all of these specifications at this time. I can describe our
1 `1 d. x# i- ~1 H( J> immediate application needs in the next email if this project is of
: o7 d& i, T. f+ o6 V5 G* P > interest to you. Perhaps you can make the samples by those
) i- a: _! R& L o9 k > specifications. This will allow us to test your radios before we move
5 q6 c+ C" i8 ?- f> forward. We are interested in your 900MHz radio to start.
, O: r o5 U# g
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