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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

' E" M& F. @0 N( o客户要求如下,如果哪家工厂可以做,请和我联系
7 |: {) U0 j: Z5 q' C > The application that we have in mind is similar to others that we commonly
& ^ d( U, v3 b5 X; V > have. If we were to pay for FCC approval, we would want to use the modem
/ m* e$ H! q* ]6 n+ ^3 c, W > units in all similar applications under the same approval number.
* A% Q: P3 r9 B+ e$ w" j > Therefore, we would like to be able to configure the units to a specific
. _- B9 D: [: _ > application. For the business that we do, this approach will yield more
4 N4 E% K8 l8 S5 N0 Q, X > sales based on the same product and approval. We are interested in the
' ^: R1 v' [5 r X( I" C> following specifications:
% b1 i \, E x >
, i& y: \4 t1 @/ h) p6 @ > - 2 inputs at the Transmitter with three possibilities;
3 f- S2 n; m" K f& S> 2 analog
5 y2 R; q7 A$ R- j6 o > 2 digital
- ~+ a2 i# }1 |$ I# {> 1 analog and 1 digital
8 \+ F1 s `( c& V+ F>
# V, P6 q5 P, p' P0 s) r& B: o* {> - 2 outputs at the Receiver with three possibilities to match inputs
: U+ F: x' r/ Y2 q>
* Y, m9 K* D2 l8 ]- r) h* u) a5 ` > - Ability to configure/define analog Transmitter input ranges through
" _0 q0 S" Z: B$ k6 b4 a > simple programming method to correspond with full-range analog Receiver
0 R( W+ u% _4 o2 T% H> outputs (0 - full voltage).
, Q& B( _8 ]/ v4 L+ q>
, {$ r8 x: A" ^> - Ability to configure and set sample rates for the inputs.
- G# u& o" a% X6 O [" }0 W. `, m >
% e' b: b; h$ `& y; Z1 Y6 x > - Digital output on Transmitter that turns on during the sampling period.
, B9 Y: `! }5 H! E6 L5 e8 J>
: z9 `/ C- {, H( Q; g; M& D3 R> - Ability to configure a power saving Sleep Mode in the Transmitter by
1 i, A% \& _, f* ~+ C> both software control and input hardware control.
# M# z" I( S- V- \ >
' ^) ^$ u4 S4 w! ?* M6 {+ v$ U> In order to configure the units, we would need a way to make the
7 k/ x8 F) S9 Q% V' n > settings. This would preferably be from a computer terminal so that
( }+ \% O L5 i > configurations can be saved or easily duplicated for production volumes.
/ [; [; V0 a% n' A A* j5 }+ A > The units should be small and compact with shielding, and able to mount
8 f1 T) Z/ d1 K& M> to a printed circuit board with header connector.
5 Y$ \3 C* e9 @ n2 Q: V, H" O>
8 E6 j5 N9 E: Q p5 S2 A> At this time, we are interested in samples of a pair of modems that
0 F( U: T" u7 K1 P' l > might be similar to this proposed system. We do not expect that you
+ O) t+ U+ m( P > provide all of these specifications at this time. I can describe our
0 U1 ~! u* @( T8 n' O> immediate application needs in the next email if this project is of
8 Y( B% ~# ]6 P" f > interest to you. Perhaps you can make the samples by those
; S0 i! t, O6 W+ |> specifications. This will allow us to test your radios before we move
( C1 m/ K" q/ s2 j& H% j > forward. We are interested in your 900MHz radio to start.
' ]5 N3 \, t% G' c
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