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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

3 \& r3 i3 g/ K0 w- a3 a客户要求如下,如果哪家工厂可以做,请和我联系
f3 O) j, `- l- ~6 M3 f L > The application that we have in mind is similar to others that we commonly
9 \/ X4 \1 _0 k> have. If we were to pay for FCC approval, we would want to use the modem
6 c( O: E/ t( u9 U > units in all similar applications under the same approval number.
6 V* V4 C4 V+ A, \! L! H> Therefore, we would like to be able to configure the units to a specific
3 s) }* q! l5 p> application. For the business that we do, this approach will yield more
" N+ v; a' D. ~4 U > sales based on the same product and approval. We are interested in the
' M8 E% a/ i- A: ], D7 t > following specifications:
4 }3 s2 Y+ H/ A" |$ R: H, A7 A" e >
% [3 h+ M5 f* T" g/ S> - 2 inputs at the Transmitter with three possibilities;
7 r5 o5 F* W/ V$ W% a" o) ^+ t > 2 analog
# O }7 }& R h! I5 j0 R> 2 digital
$ A! P5 | `( [- Z# F > 1 analog and 1 digital
. ?- [7 Y* c# _% U>
% _7 q# J6 d2 T& ^ > - 2 outputs at the Receiver with three possibilities to match inputs
1 w0 A/ P/ ?: T >
) A; [5 R! R0 X8 z5 ] m- t% B> - Ability to configure/define analog Transmitter input ranges through
# r. f6 ?5 U s8 g > simple programming method to correspond with full-range analog Receiver
( _. q9 H+ g# N/ D5 U" [> outputs (0 - full voltage).
. T, e7 K. p0 Z9 F>
& N% ]' @6 ~1 i7 C8 o& t5 J > - Ability to configure and set sample rates for the inputs.
+ @2 e! S; S% m>
0 d2 B" k1 Q- l3 B+ s1 H' S > - Digital output on Transmitter that turns on during the sampling period.
0 |* r" l ?0 N3 U# U% P>
0 d: o% `6 k1 K: e$ C) h4 |7 R$ a> - Ability to configure a power saving Sleep Mode in the Transmitter by
- R' C( u3 m: K > both software control and input hardware control.
+ x" j- x& u5 D, Y2 ]# I >
7 ]% J) J2 q j: r- \> In order to configure the units, we would need a way to make the
0 I1 F- u2 t2 {6 N> settings. This would preferably be from a computer terminal so that
3 @8 k5 O! w7 g% Z$ Z> configurations can be saved or easily duplicated for production volumes.
v( x: G" K4 B; V0 E% f > The units should be small and compact with shielding, and able to mount
, b2 |+ I9 u2 X2 O> to a printed circuit board with header connector.
( d5 u$ h8 `7 M% o4 g% }# \ >
. p, v0 g, _% D( ?: P: g > At this time, we are interested in samples of a pair of modems that
% O; u" W; i7 t1 I) } > might be similar to this proposed system. We do not expect that you
" a9 d% c2 ?7 ^7 h/ Q7 |> provide all of these specifications at this time. I can describe our
4 |6 b; A4 N$ B' i/ b> immediate application needs in the next email if this project is of
! |1 b. D3 W! ?1 I5 ` > interest to you. Perhaps you can make the samples by those
, P# @% `; ?5 t; i" N > specifications. This will allow us to test your radios before we move
, d8 n9 M3 [# }, G! e- l > forward. We are interested in your 900MHz radio to start.
! m: @6 m% v3 ^7 @
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