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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

$ j b! t( \' m' W0 {! h客户要求如下,如果哪家工厂可以做,请和我联系
. M$ y, W' f% W n9 R> The application that we have in mind is similar to others that we commonly
) N4 t6 C+ p/ h > have. If we were to pay for FCC approval, we would want to use the modem
z5 n' d/ t; W. Q K/ \% H4 ]; D1 o$ h> units in all similar applications under the same approval number.
/ [2 L. [& v" Y. H8 X# G> Therefore, we would like to be able to configure the units to a specific
; k4 P7 \+ r2 a% E2 w0 z> application. For the business that we do, this approach will yield more
x% s! `3 }( t. p/ O. g0 A > sales based on the same product and approval. We are interested in the
3 a b$ e. \; O& a( o) J% d' M( x8 l > following specifications:
/ q1 U% I5 \; f4 Z>
% Q$ L1 y3 [. t > - 2 inputs at the Transmitter with three possibilities;
3 w. D1 T" C4 |3 b > 2 analog
; z: s( A8 Q1 i4 `) E, E > 2 digital
; o2 Q( E. ^; {' n$ } > 1 analog and 1 digital
8 l4 A: Q! ]" w8 ` U+ ]% u >
& p) ~. p0 c, |( v1 r9 w$ N1 M > - 2 outputs at the Receiver with three possibilities to match inputs
8 T- l, C6 @) p4 [6 x>
* v1 P3 B7 P8 d' N) S% R> - Ability to configure/define analog Transmitter input ranges through
+ `0 f" ]4 y: m; L> simple programming method to correspond with full-range analog Receiver
) z# Z2 V$ }( I, o> outputs (0 - full voltage).
$ Z8 e* t# S* y2 Y8 y) }. N>
1 H: g; V& M. _: X > - Ability to configure and set sample rates for the inputs.
4 ~+ d) L. G( Z2 P/ [>
9 T% s a! y) } > - Digital output on Transmitter that turns on during the sampling period.
; q& ~" y/ h& I' K! R6 I >
' y E9 V1 {+ ?. `8 z! s7 O > - Ability to configure a power saving Sleep Mode in the Transmitter by
* _/ [8 {8 x2 z% P! f > both software control and input hardware control.
+ e7 {4 k# D1 _( r G3 } >
: x1 w5 Q; o5 C+ K' b> In order to configure the units, we would need a way to make the
9 U3 w& h; I/ v5 q) F. i- Q > settings. This would preferably be from a computer terminal so that
0 j4 z* \ V; A% ^+ e6 R& i# A > configurations can be saved or easily duplicated for production volumes.
3 Q. c5 [' Q7 h$ T> The units should be small and compact with shielding, and able to mount
( u8 b" a! a& W) f; f9 y> to a printed circuit board with header connector.
" l! S% [3 W8 d8 I>
. z3 \4 s; T" g( Z2 \( e > At this time, we are interested in samples of a pair of modems that
# L/ N4 |" n/ l( S' G9 \> might be similar to this proposed system. We do not expect that you
* D* s9 a7 p5 O, K- l* u3 Z3 P) l> provide all of these specifications at this time. I can describe our
# v& G& s8 ]- c> immediate application needs in the next email if this project is of
Q( q M2 Z& X( z/ e7 w5 O/ w> interest to you. Perhaps you can make the samples by those
3 P2 t% P3 ?8 D4 P Q > specifications. This will allow us to test your radios before we move
# \! w! Y& Y+ W7 E' T3 N > forward. We are interested in your 900MHz radio to start.
; E9 @: w, @2 C- P0 S6 |3 O
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