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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

m% l- M( n8 v3 [" E客户要求如下,如果哪家工厂可以做,请和我联系
: M& K: b! c6 `4 e* J> The application that we have in mind is similar to others that we commonly
4 W- _8 M% o9 Q- T6 x> have. If we were to pay for FCC approval, we would want to use the modem
+ T ~- k- B- C9 S" c4 c > units in all similar applications under the same approval number.
" R" x3 a8 {. k7 L" U3 i9 f' t* O> Therefore, we would like to be able to configure the units to a specific
! s8 u9 e$ `; B5 Q% I> application. For the business that we do, this approach will yield more
" a/ N* @+ Z+ J, C > sales based on the same product and approval. We are interested in the
1 j+ @( R1 e* l9 v; F' k7 W> following specifications:
# J8 {; t; m: i( n! ] >
3 B" ^& V7 b3 s > - 2 inputs at the Transmitter with three possibilities;
- L; V% G% ?8 v9 d- Y& a, [1 q > 2 analog
! g# n* n; W: }1 w$ v3 {* k> 2 digital
. C2 I2 I) O& u6 l > 1 analog and 1 digital
, z% |( i; u9 E8 c8 ?+ T>
* j; Y0 r4 s# ^. }! o5 c1 \( {# g > - 2 outputs at the Receiver with three possibilities to match inputs
) E: I$ j& F2 H. K5 E>
! e/ R# e1 p7 Y8 y> - Ability to configure/define analog Transmitter input ranges through
' f0 f$ m* w( W" L% e# V > simple programming method to correspond with full-range analog Receiver
. `: J5 D6 I& s& p > outputs (0 - full voltage).
A' X( e$ q/ I1 v; J% q>
- |0 ?3 z7 w3 k' i- P6 D4 }6 W! A> - Ability to configure and set sample rates for the inputs.
" G- X, J/ k& d >
1 a3 W0 [ `$ P2 n( j > - Digital output on Transmitter that turns on during the sampling period.
1 n8 o4 R" P1 x2 M2 M>
+ t& h1 G2 t0 E- ]8 ]; a* a; v > - Ability to configure a power saving Sleep Mode in the Transmitter by
9 y. T; L+ U. N6 T > both software control and input hardware control.
' V+ ~& X) n/ U3 C6 W >
7 c Z# l' r" ?2 X > In order to configure the units, we would need a way to make the
9 {1 `+ |& ~5 @+ m> settings. This would preferably be from a computer terminal so that
' r( j9 r- w- X> configurations can be saved or easily duplicated for production volumes.
! N1 ]. x- @7 k$ W > The units should be small and compact with shielding, and able to mount
; y9 j! x/ U) O3 M3 [> to a printed circuit board with header connector.
- P0 ~! n4 @4 j1 T>
$ u$ |" v7 ]4 m) K > At this time, we are interested in samples of a pair of modems that
8 U; I9 S; c' Q0 I, e* ^ > might be similar to this proposed system. We do not expect that you
: K% T" _' P& i, U/ ]6 J > provide all of these specifications at this time. I can describe our
1 P$ z% J: z4 Y: v+ I) F% S+ f > immediate application needs in the next email if this project is of
- v3 v1 [1 A% n8 Y: n, e> interest to you. Perhaps you can make the samples by those
0 i" F5 L6 M4 i2 U% a% I> specifications. This will allow us to test your radios before we move
* O- Y1 P& u" [) g3 o> forward. We are interested in your 900MHz radio to start.
F/ M! t9 A* q4 O, B
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