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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

$ x( n3 ]- l% S* T 客户要求如下,如果哪家工厂可以做,请和我联系
: `0 b0 f* L' e/ p B, q4 L> The application that we have in mind is similar to others that we commonly
* ]$ k0 S# P8 n> have. If we were to pay for FCC approval, we would want to use the modem
. S' y' U6 r' P3 d- G9 y> units in all similar applications under the same approval number.
, S v i6 `6 u6 J > Therefore, we would like to be able to configure the units to a specific
& G+ T, t! m- X8 Y > application. For the business that we do, this approach will yield more
! V7 l2 b! I" U$ |/ Y% a> sales based on the same product and approval. We are interested in the
% O: |. \: o: _> following specifications:
. F0 q p+ Q; x$ L7 z6 D >
2 ]. \. _- e1 p0 K$ O> - 2 inputs at the Transmitter with three possibilities;
( u/ z% l% j$ g3 c# @* |2 E > 2 analog
9 E9 m* k# }6 ? ]0 g > 2 digital
5 L7 i1 K# F3 \* s> 1 analog and 1 digital
; w, r8 F2 e/ Z4 a- u* q>
, e( |1 e( ~. \" W* s6 z > - 2 outputs at the Receiver with three possibilities to match inputs
( \" |+ i( P6 }0 T>
# B# H) C* |$ i > - Ability to configure/define analog Transmitter input ranges through
! S* I o3 j) F ?> simple programming method to correspond with full-range analog Receiver
1 j( z# o- W+ r" S6 X. h> outputs (0 - full voltage).
. |# K3 q" O: g% P>
5 |! U0 x- q( M8 o5 D7 j > - Ability to configure and set sample rates for the inputs.
3 f+ R# K1 U, D0 s >
4 A9 | z' g/ }4 p Z" a > - Digital output on Transmitter that turns on during the sampling period.
" ?1 v- {1 ~5 t; J2 q) h0 ]/ d>
" Q& X+ e0 {. |) `' I. ^" I> - Ability to configure a power saving Sleep Mode in the Transmitter by
9 N7 P5 H- z {3 y4 T o > both software control and input hardware control.
M) L0 t# Z, A$ n5 k9 m0 ]9 x- R >
+ m; K5 F. U1 H+ Z> In order to configure the units, we would need a way to make the
A" E- _" W: X( e; g* t6 K > settings. This would preferably be from a computer terminal so that
; b8 ]* `1 a( W/ m> configurations can be saved or easily duplicated for production volumes.
" F# x% `, c8 y3 A# l+ M> The units should be small and compact with shielding, and able to mount
* z1 w1 _& l) n6 D8 _ > to a printed circuit board with header connector.
8 a5 p( O3 T4 F* M3 i- B >
9 }( d. b p1 [4 k9 N > At this time, we are interested in samples of a pair of modems that
" }2 _3 q% q* H E. \; v7 @% L > might be similar to this proposed system. We do not expect that you
$ [- W9 a N- R8 u: p > provide all of these specifications at this time. I can describe our
- v" h- Z/ X- \% [0 u& T> immediate application needs in the next email if this project is of
6 `5 A5 \; R3 _$ N3 w9 _4 @ > interest to you. Perhaps you can make the samples by those
6 M, o0 k* t" m > specifications. This will allow us to test your radios before we move
w) g8 p% Q" o5 K5 @ > forward. We are interested in your 900MHz radio to start.
R F# i# l: i1 o8 r# J4 E, m
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