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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

4 T" `7 w& x8 J1 o) h+ ? 客户要求如下,如果哪家工厂可以做,请和我联系
) u% i: O" s$ h; b8 e. {> The application that we have in mind is similar to others that we commonly
$ t& B. d! C. t: ^/ j > have. If we were to pay for FCC approval, we would want to use the modem
7 F" j# c* L H- W; |3 ?8 p > units in all similar applications under the same approval number.
0 X# ^) d5 i9 }& A& D# t> Therefore, we would like to be able to configure the units to a specific
+ b+ u/ s3 m) S) `> application. For the business that we do, this approach will yield more
, x6 v6 C- Q5 ~7 {, A# s% \ > sales based on the same product and approval. We are interested in the
0 z W; q6 F1 Y> following specifications:
" {) O6 U. a9 m' d* b, C* @8 T7 e >
+ G8 K) H# Y+ Q: x6 u> - 2 inputs at the Transmitter with three possibilities;
) E( P A3 R9 R; O$ {7 u7 ?> 2 analog
7 ]! s. P2 f" R > 2 digital
: D) @% [& o3 N' ]% t> 1 analog and 1 digital
* |9 T8 A- Z" H' }: n, G >
2 r3 P% m2 ^6 H, G% h > - 2 outputs at the Receiver with three possibilities to match inputs
+ D) Q# |' j$ u$ J1 a" {>
1 ?# A, N1 \8 {$ ~; m- G' b> - Ability to configure/define analog Transmitter input ranges through
: l P! M/ s, D! E o# k0 ~ > simple programming method to correspond with full-range analog Receiver
, @! h0 A9 i2 V, l* { > outputs (0 - full voltage).
. G1 B) |3 q2 ]* ^0 [+ P! N>
/ c( T6 B$ i" Q* r% \9 T> - Ability to configure and set sample rates for the inputs.
; d# y ~' V" |0 E, }3 ?0 l, |* y >
% E/ i& u2 @, ^> - Digital output on Transmitter that turns on during the sampling period.
% y5 C7 f8 V: p: k >
6 }( y6 t) F0 f7 {0 w$ y8 o" q G! f% L: y > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 d; p% x2 z9 j" h> both software control and input hardware control.
) h$ J# P& T& ? {% j3 ]& P>
1 H3 H/ A0 j4 E2 ]+ |- a> In order to configure the units, we would need a way to make the
" I; F( ^5 C; T0 K > settings. This would preferably be from a computer terminal so that
3 t. V$ X4 }+ J, U: C; Z5 H > configurations can be saved or easily duplicated for production volumes.
$ a6 z8 A" t( y4 i g > The units should be small and compact with shielding, and able to mount
4 ~. Q+ e7 f c8 V> to a printed circuit board with header connector.
1 S7 i9 x) p! {8 w, G3 ~ >
2 k* u' |4 {6 X, M' P> At this time, we are interested in samples of a pair of modems that
5 ^* u m' j) e5 b$ P> might be similar to this proposed system. We do not expect that you
" m# b& w4 [. j# L. F p> provide all of these specifications at this time. I can describe our
! s/ p8 @/ d: k( q( H4 {> immediate application needs in the next email if this project is of
6 _9 L+ k0 m9 ~> interest to you. Perhaps you can make the samples by those
9 L5 c: e( x. D" j/ s. I, u > specifications. This will allow us to test your radios before we move
! w) B) z, H6 W& _% @ > forward. We are interested in your 900MHz radio to start.
% C3 P/ X+ |, y! k( M
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