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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

* R$ E+ E) ^7 C客户要求如下,如果哪家工厂可以做,请和我联系
{$ t3 B0 I+ e4 Z > The application that we have in mind is similar to others that we commonly
. g- G0 E; U7 ]: @" [ > have. If we were to pay for FCC approval, we would want to use the modem
; W4 L6 i0 }1 L& o4 w- i, W5 d > units in all similar applications under the same approval number.
1 ]8 c' \9 R2 b> Therefore, we would like to be able to configure the units to a specific
1 b( D1 [( W7 F> application. For the business that we do, this approach will yield more
# @6 J E5 w$ ]3 ?5 N" `2 U5 R> sales based on the same product and approval. We are interested in the
" M; s1 E( ^0 f1 B3 m, c# ~4 H > following specifications:
# D6 s. P! o& a" g7 ?7 k7 ^8 ] >
, A( _2 }* v3 N' k, c* D9 T6 r> - 2 inputs at the Transmitter with three possibilities;
3 \" q7 V3 T: j: D8 }: K> 2 analog
0 \, G# j: i) e) r( X > 2 digital
4 x z/ W* a" q > 1 analog and 1 digital
) @! ^! Z; j* x% H0 ?( _ >
' Z5 [3 ~+ E* V# @> - 2 outputs at the Receiver with three possibilities to match inputs
* F4 k! e3 e$ ?/ x' r! w>
3 j1 v; B6 l# G9 c6 I> - Ability to configure/define analog Transmitter input ranges through
$ H( \) G5 E, ] F3 h4 E > simple programming method to correspond with full-range analog Receiver
: `: K2 c: B# V* R > outputs (0 - full voltage).
\6 X4 s1 S0 C# N9 } >
: j0 C8 n& E: E8 W > - Ability to configure and set sample rates for the inputs.
* C3 e% h# N/ b( l# Y' j; n6 k- L>
+ h. c; [6 y3 ~6 P( j* ? > - Digital output on Transmitter that turns on during the sampling period.
! Z: I1 _, k7 d+ j2 O: w>
! y/ I( H: M f+ K: ~8 K> - Ability to configure a power saving Sleep Mode in the Transmitter by
7 O0 t1 u! Q6 i" j> both software control and input hardware control.
% _3 C) m+ ^! s M0 X/ t# r>
5 k3 N1 a1 P2 p$ F > In order to configure the units, we would need a way to make the
! x" m" F* y0 l9 O, C( w0 ^ > settings. This would preferably be from a computer terminal so that
5 g' A+ S, _( |/ Z$ h5 _+ V> configurations can be saved or easily duplicated for production volumes.
0 y" X) k2 n+ T> The units should be small and compact with shielding, and able to mount
& a0 o' I, J% | > to a printed circuit board with header connector.
4 q" ^7 I4 p1 i5 ~: d>
3 h6 D+ `8 I8 [# [+ Y5 }- x' }> At this time, we are interested in samples of a pair of modems that
7 Z! o/ q6 R- @8 i* c> might be similar to this proposed system. We do not expect that you
8 |# n3 W" S4 N \1 \" r/ z2 V > provide all of these specifications at this time. I can describe our
2 m; E3 V* [+ t4 T( E> immediate application needs in the next email if this project is of
1 }" W5 O' }" Q# J$ U1 I > interest to you. Perhaps you can make the samples by those
1 b! `* Z2 U1 ^0 Y, k- R. n# o0 D( P> specifications. This will allow us to test your radios before we move
. I3 \6 U. m+ J0 E( `' e > forward. We are interested in your 900MHz radio to start.
; W& L1 z% F! x" g7 E% |( J
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