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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

+ h2 h& H) M: O2 I0 T% A/ h; p0 H 客户要求如下,如果哪家工厂可以做,请和我联系
( V1 e$ J$ Q2 ^> The application that we have in mind is similar to others that we commonly
/ @- R# [% h# Q4 C% n > have. If we were to pay for FCC approval, we would want to use the modem
9 L9 s( u3 k, P8 o" G> units in all similar applications under the same approval number.
8 ?" _# ?/ b& e, S$ C |: ?> Therefore, we would like to be able to configure the units to a specific
$ G6 } V- N. _+ G% U6 z > application. For the business that we do, this approach will yield more
; U8 o2 [, u( n4 D p& f" d2 ~> sales based on the same product and approval. We are interested in the
% n E. T4 p% L# p5 `6 F4 N% q- r( P > following specifications:
4 k1 M6 t% e4 Y& u$ Y >
1 `$ W6 X4 b" W> - 2 inputs at the Transmitter with three possibilities;
, M( [' c5 n. o5 R4 |+ l* ] > 2 analog
# a+ \. U0 t2 b( {5 f/ I6 z> 2 digital
) P+ B8 G: y) i/ f8 i4 B( y > 1 analog and 1 digital
8 k1 i' h" G# |* @) w>
5 M3 O; H d( K) I0 c) F/ K > - 2 outputs at the Receiver with three possibilities to match inputs
; i! k; D X# Z& Q: j) R >
) {$ d, ?" D5 k( u& m/ M> - Ability to configure/define analog Transmitter input ranges through
, n" y6 V1 X1 |+ G- b2 k& }, Z) k7 | > simple programming method to correspond with full-range analog Receiver
, M/ K: M. g% P8 G> outputs (0 - full voltage).
/ d% z+ [$ D3 P/ E! c>
' b2 x! s$ c3 H4 V6 d8 O8 Y > - Ability to configure and set sample rates for the inputs.
% V8 J5 J. t6 [, e/ b6 Z4 B>
/ s$ W# j0 M$ p: X( i' E > - Digital output on Transmitter that turns on during the sampling period.
# k/ q7 y' F" y& q3 G% F) N4 j >
, l2 ^! T5 k- Y" b( s/ c> - Ability to configure a power saving Sleep Mode in the Transmitter by
+ Y2 T3 Q/ {0 ?0 K% B> both software control and input hardware control.
' V# k4 l% o1 V7 Y5 ]>
( W) { R6 b" _$ S > In order to configure the units, we would need a way to make the
, U0 o% F% }1 T6 }1 w* G/ J > settings. This would preferably be from a computer terminal so that
2 I1 g4 X" P4 Q6 Z5 v3 O > configurations can be saved or easily duplicated for production volumes.
' C* o, D9 {9 O3 Q- a) W8 K' K/ ~> The units should be small and compact with shielding, and able to mount
7 y6 w, M' H7 J/ d8 M, g0 p, q/ L+ R> to a printed circuit board with header connector.
/ Z" |( p7 Q6 S4 { >
1 I3 K7 S; Y; \: Z8 T8 i) ~ > At this time, we are interested in samples of a pair of modems that
/ I# V* \* c& [5 c' t > might be similar to this proposed system. We do not expect that you
( H' o' A1 c% a* O$ _- Z> provide all of these specifications at this time. I can describe our
" {; ~- ?4 G, d8 }5 g! i > immediate application needs in the next email if this project is of
5 a* X+ o, e$ e- T0 n2 u> interest to you. Perhaps you can make the samples by those
4 t+ L! @' m, s* ^ E> specifications. This will allow us to test your radios before we move
5 E/ s3 _, _; T > forward. We are interested in your 900MHz radio to start.
3 s, |* X& v0 K5 f' ~7 U) R
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