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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

2 d7 e6 @9 `0 t) L 客户要求如下,如果哪家工厂可以做,请和我联系
: m/ F9 a9 n. m3 E' b> The application that we have in mind is similar to others that we commonly
% S/ s. {/ {# ^8 W# s> have. If we were to pay for FCC approval, we would want to use the modem
' h8 R- @) [1 i2 Z$ S; K& |3 E. Z > units in all similar applications under the same approval number.
- O o9 |6 V/ @0 | > Therefore, we would like to be able to configure the units to a specific
6 P& L0 L0 ~1 U+ [5 P" Q& ]3 o* |> application. For the business that we do, this approach will yield more
, i+ q" b' j* c5 x0 I& W/ M: n> sales based on the same product and approval. We are interested in the
d. V2 p( _2 N. L& k; j. X> following specifications:
8 F& K1 p; `8 F# @: v >
* m. S8 ]- z' L' p. K3 d6 R> - 2 inputs at the Transmitter with three possibilities;
/ E2 P0 ?; i7 I> 2 analog
! U3 X2 U. p$ K' w" j; X > 2 digital
* v* j/ ^. j* ]; Q# s }& V E> 1 analog and 1 digital
N! I; y) P2 C! A8 P! I8 ?/ O3 s >
. a# X8 E( x! c> - 2 outputs at the Receiver with three possibilities to match inputs
- G, p5 d! |. ^! o1 k; D: @ >
& C0 X8 J9 X( S7 L > - Ability to configure/define analog Transmitter input ranges through
0 v3 p0 ^, {3 m( Z$ I7 b5 o> simple programming method to correspond with full-range analog Receiver
$ G) K9 }, O c9 H1 _" \ > outputs (0 - full voltage).
5 s0 p4 E% g7 M& |& Q4 c+ l. @/ W>
. p( l1 H+ g/ I > - Ability to configure and set sample rates for the inputs.
# i6 q: E/ A6 u( q& {>
# @ _5 k, P9 K+ V j3 S- m' n > - Digital output on Transmitter that turns on during the sampling period.
, p& \: L* x) {9 L: J>
2 [2 \) Q, B5 x2 d8 m; c' R E. b> - Ability to configure a power saving Sleep Mode in the Transmitter by
5 ~; j- V5 Y* c; ]1 c > both software control and input hardware control.
/ }, S1 O+ u, ]# m* X>
8 s0 |+ p3 c3 T8 G) @+ D> In order to configure the units, we would need a way to make the
" d. d! R" }" e: H( Z/ A > settings. This would preferably be from a computer terminal so that
$ n- e7 Z1 H% `+ ^. ?( v > configurations can be saved or easily duplicated for production volumes.
' K, ]/ n. X% O2 _/ B> The units should be small and compact with shielding, and able to mount
7 ~. Q, \) W) @- x- ]> to a printed circuit board with header connector.
$ ?9 |0 A- t$ `% K: D- [>
- Q' o, I- n( q9 a- _1 ?2 i0 D f > At this time, we are interested in samples of a pair of modems that
% C) `- y. x( W, M3 b1 O X, d' { > might be similar to this proposed system. We do not expect that you
7 Q7 R4 Y( ?2 t. `1 s- q > provide all of these specifications at this time. I can describe our
% Z E& @% y2 t( Q& ?& [( m) v+ U> immediate application needs in the next email if this project is of
7 X* g) E' e6 Y& O> interest to you. Perhaps you can make the samples by those
1 B) }2 x7 o A> specifications. This will allow us to test your radios before we move
2 O! m$ S6 e2 I7 H& q > forward. We are interested in your 900MHz radio to start.
- S2 K$ @6 H* V$ F7 P
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