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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

M8 c& s/ ^7 v- _+ [* Q 客户要求如下,如果哪家工厂可以做,请和我联系
2 k( A1 l- w5 @9 [% i8 g7 T> The application that we have in mind is similar to others that we commonly
7 t2 N# I( F( h) U/ R+ _ > have. If we were to pay for FCC approval, we would want to use the modem
8 x/ |' Q4 u: c. b4 n' l8 g3 d- G > units in all similar applications under the same approval number.
2 ~% i8 d$ t. w6 w& s > Therefore, we would like to be able to configure the units to a specific
0 {. G) D& ^1 ?5 K, R* @" k > application. For the business that we do, this approach will yield more
, R" @7 m6 r0 i. U) J- ^ > sales based on the same product and approval. We are interested in the
7 \/ w$ u5 ~- H' y' I> following specifications:
- Y/ v( l) T9 @+ n>
3 T# [1 Y' j+ C+ Z> - 2 inputs at the Transmitter with three possibilities;
/ `) O, [7 M4 S. V3 v9 \, x* ` > 2 analog
/ I$ u8 m; [7 { > 2 digital
$ S- x4 n4 M& ?; N* U5 a> 1 analog and 1 digital
- o) {+ D4 b) [1 S' W>
/ I) e0 r$ U7 K2 I > - 2 outputs at the Receiver with three possibilities to match inputs
6 ~( d5 F" r2 u; L/ t# U, t. ?>
- X7 I) l! Q, F' z) s9 J3 n# s* O1 W> - Ability to configure/define analog Transmitter input ranges through
; T% j; x: n% `, c- Z. m! D, {* p6 I> simple programming method to correspond with full-range analog Receiver
+ D, r$ g. ~# P7 q> outputs (0 - full voltage).
/ r ~% j% [* j>
g1 p. V7 r9 F C" J > - Ability to configure and set sample rates for the inputs.
) d8 T2 ^ }2 d% i0 f0 O+ V>
/ [# w) t2 r4 I9 I( x3 o ~5 e2 c& R > - Digital output on Transmitter that turns on during the sampling period.
: e3 y; }" P# z" c>
- A8 p. a/ x$ e# D- X& ?* u6 R> - Ability to configure a power saving Sleep Mode in the Transmitter by
p* `3 {; k; w: q3 J > both software control and input hardware control.
$ \. y) w9 }, U7 q>
- ^% h. q2 C' n2 N2 ?, h> In order to configure the units, we would need a way to make the
% G( I8 ^- }$ j1 C$ {/ h* |> settings. This would preferably be from a computer terminal so that
, \+ J# L* T4 u> configurations can be saved or easily duplicated for production volumes.
# |: R, H6 ^$ d& j- \ > The units should be small and compact with shielding, and able to mount
8 W7 {) ]2 P! C, e8 x. f, y > to a printed circuit board with header connector.
( f; C4 f9 |7 f+ p) h >
8 E! l, }2 x( T" ^ > At this time, we are interested in samples of a pair of modems that
- E" h* H) I& K" H6 u- \$ S> might be similar to this proposed system. We do not expect that you
+ Y3 {! P. w! ?5 k5 R > provide all of these specifications at this time. I can describe our
9 i y4 N7 C/ [ > immediate application needs in the next email if this project is of
! C; e9 k% ^0 z( G* x. S1 z; ? > interest to you. Perhaps you can make the samples by those
" ~+ j+ m7 e1 G- e2 m > specifications. This will allow us to test your radios before we move
e# M- t9 x {> forward. We are interested in your 900MHz radio to start.
* p& {+ {4 l& G5 c& {# [0 j
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