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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 {' ?& U/ t) K 客户要求如下,如果哪家工厂可以做,请和我联系
$ @9 W1 ^1 Z( q. R# N* _> The application that we have in mind is similar to others that we commonly
% m4 w8 K" T: m; Z> have. If we were to pay for FCC approval, we would want to use the modem
1 x% a+ n0 ]3 I > units in all similar applications under the same approval number.
: T& M' w' E) J1 d$ E+ Z> Therefore, we would like to be able to configure the units to a specific
# r0 v' x& q% G > application. For the business that we do, this approach will yield more
' z3 L+ n! I2 j1 ]> sales based on the same product and approval. We are interested in the
3 g: @, k# y, F > following specifications:
- |) ?; H8 f: ?- |5 p* \# a >
7 s: n) ]+ l! d$ @) q# L4 V > - 2 inputs at the Transmitter with three possibilities;
& J n% A" S/ Z+ L/ @> 2 analog
9 } l# Q. w( u+ \# D1 g" g3 \& f, N> 2 digital
) h4 s, W: p3 d5 _: T> 1 analog and 1 digital
; C2 p4 x& c7 w- a >
# s2 d+ {$ `1 J> - 2 outputs at the Receiver with three possibilities to match inputs
- r& \7 D# @ c7 m+ \3 }: D8 T D& ? >
" ?6 ?7 f; S }" F > - Ability to configure/define analog Transmitter input ranges through
* y, D/ W, f. M h. @ > simple programming method to correspond with full-range analog Receiver
: P- L/ M( A3 Q5 e" ~4 P4 x @> outputs (0 - full voltage).
; [) S( n' u) \1 p: E >
4 E' e! T2 q) |0 H1 ~ > - Ability to configure and set sample rates for the inputs.
& l& U7 J9 a& ]( c f% [; S+ r3 O$ z>
6 x$ V U9 F6 q( |1 X I# q' a' ` > - Digital output on Transmitter that turns on during the sampling period.
% f/ d6 O+ F& k& _ >
. l! |2 K, U# }5 \> - Ability to configure a power saving Sleep Mode in the Transmitter by
- U* T$ V+ Q2 L" h. o$ [- C7 }; Z> both software control and input hardware control.
$ d1 z. S" ]7 R' H >
/ ]5 N$ S0 r9 t( Q& |* |> In order to configure the units, we would need a way to make the
" e9 G$ k& @5 n& i- K > settings. This would preferably be from a computer terminal so that
; G% L9 E9 [3 u> configurations can be saved or easily duplicated for production volumes.
; O' `" H v/ ^9 B) s > The units should be small and compact with shielding, and able to mount
2 e3 _& t# ~! l$ t$ }. r3 l& j> to a printed circuit board with header connector.
3 M" `( `( T% v >
+ q7 w7 Z+ V& F6 c6 e" ?> At this time, we are interested in samples of a pair of modems that
9 A& |6 _" w! h. z- a' ]> might be similar to this proposed system. We do not expect that you
9 p$ o( V7 ]6 [/ G0 E5 g> provide all of these specifications at this time. I can describe our
. L; t7 u* Y& B: N" }( {& u > immediate application needs in the next email if this project is of
: N9 \4 m7 F" v' ~$ \* R0 u > interest to you. Perhaps you can make the samples by those
6 Y3 R$ |1 h! Y* d8 j+ H0 r" c1 }> specifications. This will allow us to test your radios before we move
$ x% H4 I* ?1 A9 J, s9 x5 B6 k> forward. We are interested in your 900MHz radio to start.
: L, b" i9 t2 U5 j" a2 j
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