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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. A" e2 p' a$ |1 {8 u& T客户要求如下,如果哪家工厂可以做,请和我联系
% r# h+ g6 G/ s* y > The application that we have in mind is similar to others that we commonly
0 i0 P. K! s% L0 q; m% s > have. If we were to pay for FCC approval, we would want to use the modem
% x& p; J' |( [& |> units in all similar applications under the same approval number.
& g- Q' q% h' i0 f > Therefore, we would like to be able to configure the units to a specific
. q* ?2 }6 |: t3 G; r i# m5 o> application. For the business that we do, this approach will yield more
% U, C/ ]% j) C0 s* B> sales based on the same product and approval. We are interested in the
/ u; n8 q3 C3 D> following specifications:
: L- R7 b: p+ t >
: H! P- k9 ^9 q& n5 h* u6 w; z% t> - 2 inputs at the Transmitter with three possibilities;
7 q: `! S. O" S: y# Z5 v# | > 2 analog
& F) d! d* E9 c$ `5 m > 2 digital
( F4 }) L% K( Q) Z/ t i> 1 analog and 1 digital
6 w9 O# I2 z' z; n" b7 s >
! o' H# s/ h/ o> - 2 outputs at the Receiver with three possibilities to match inputs
2 Y+ B0 s' @% c6 y. E >
2 i1 `8 ~3 Y3 ^+ x: d: F > - Ability to configure/define analog Transmitter input ranges through
8 @$ Q3 y V* @" h \- U2 G$ j5 I > simple programming method to correspond with full-range analog Receiver
! q5 W( d1 h; m0 l> outputs (0 - full voltage).
3 c9 S- V' J) i>
5 l3 b0 {& U; Q> - Ability to configure and set sample rates for the inputs.
8 {$ u- m/ g$ e, z0 }>
4 X5 g' B+ G- M4 p- W > - Digital output on Transmitter that turns on during the sampling period.
- }0 G& }) |2 N) v% M! f# g- o >
+ y* N& f: j# G; e0 ]> - Ability to configure a power saving Sleep Mode in the Transmitter by
5 }& ~8 U5 n4 l9 J( _! l1 w8 \; M> both software control and input hardware control.
' Z: C3 O1 _4 }8 T>
3 _3 Z! H1 \ g ]; j" c0 Y/ P1 W> In order to configure the units, we would need a way to make the
@- P; [7 |* ~8 h' T# S > settings. This would preferably be from a computer terminal so that
/ P% f6 Q4 ~8 g, K+ n* S> configurations can be saved or easily duplicated for production volumes.
7 z( n' u* j! ?: M > The units should be small and compact with shielding, and able to mount
/ X: M- g0 _% a& l7 t7 x: a2 n- D( _* H+ [> to a printed circuit board with header connector.
) s, D+ n/ ]: Q' X0 t. T >
r- v8 j9 b" o/ E> At this time, we are interested in samples of a pair of modems that
5 Z- L6 n/ G9 f9 |3 r2 Y9 Y! A> might be similar to this proposed system. We do not expect that you
" B0 E6 M2 E/ z' \+ A& \) L> provide all of these specifications at this time. I can describe our
. a( w$ r3 h% |6 o* `> immediate application needs in the next email if this project is of
: N' v3 R. U) i: S% f> interest to you. Perhaps you can make the samples by those
: S4 N- N: o& F > specifications. This will allow us to test your radios before we move
, r2 A# g% ~, Z > forward. We are interested in your 900MHz radio to start.
. q# q$ Q7 k) b6 ^! A8 W
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