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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

" G1 J: |2 q+ E( [& G5 J2 i" [ 客户要求如下,如果哪家工厂可以做,请和我联系
6 P3 g7 i: W4 S5 R > The application that we have in mind is similar to others that we commonly
1 ^/ e: M0 M2 Q" Y' a4 r> have. If we were to pay for FCC approval, we would want to use the modem
5 ?0 O F M3 G% ]' h > units in all similar applications under the same approval number.
, j) u% `0 o; k2 a$ q: S7 J: m> Therefore, we would like to be able to configure the units to a specific
' Z* h1 k( w( L1 j" H _> application. For the business that we do, this approach will yield more
7 a3 Y$ o5 q! j( s1 \> sales based on the same product and approval. We are interested in the
Y+ Y5 C4 B% I> following specifications:
$ ~' n" A) z* U2 D! x# f>
a5 x" s& U2 u+ O > - 2 inputs at the Transmitter with three possibilities;
# b: O& `% _& s1 t8 s# V7 G> 2 analog
! c; P# {! U1 y! h: R/ k> 2 digital
; f* A. A+ t! t% z( u x, U( ]7 j> 1 analog and 1 digital
/ D. {7 V0 S# G8 m3 g0 J >
* x5 g1 M G% J > - 2 outputs at the Receiver with three possibilities to match inputs
$ B* T% r* G. T, j( p% \0 e, r>
5 `0 x; T( v& h, w6 h, p> - Ability to configure/define analog Transmitter input ranges through
7 B( M- W1 [1 Y > simple programming method to correspond with full-range analog Receiver
F: R5 f5 J6 {! j% R > outputs (0 - full voltage).
& |- F& t9 r% h7 y' z( s>
& J% E! A& c( W( s- N. ]/ A> - Ability to configure and set sample rates for the inputs.
0 q+ Z4 O: y2 s, J>
. W% H6 ]3 ] p. e4 B0 ^/ I% t( m! K> - Digital output on Transmitter that turns on during the sampling period.
& ?& {7 Y) j: ]# a; D>
- J+ d, ], ~4 ~+ [% d `4 t > - Ability to configure a power saving Sleep Mode in the Transmitter by
6 V9 `6 D0 z( `> both software control and input hardware control.
$ z7 o4 @& B0 j' E >
8 R3 T6 m8 z$ [( C2 q > In order to configure the units, we would need a way to make the
- z x- J, {0 c/ w> settings. This would preferably be from a computer terminal so that
; q% t( \5 m Z* k. Z9 A/ N> configurations can be saved or easily duplicated for production volumes.
1 V/ `9 F5 ~2 ~* s. y% C! i> The units should be small and compact with shielding, and able to mount
& W' U+ o4 p, U" x1 m" R > to a printed circuit board with header connector.
" Q2 ]: B) g% q7 Y. m >
, r, w J" u) N" I4 S a/ q$ c4 D > At this time, we are interested in samples of a pair of modems that
: D7 d4 h% b; l5 L > might be similar to this proposed system. We do not expect that you
8 z$ T# r9 l. Q; {! z> provide all of these specifications at this time. I can describe our
6 c7 \1 J9 Z) D7 I# _! p> immediate application needs in the next email if this project is of
! p/ W" E L- Q& U# C# v1 M: C6 ~1 L> interest to you. Perhaps you can make the samples by those
7 a, z$ Y) `$ |8 I. f. t > specifications. This will allow us to test your radios before we move
4 X& |) U" j, X( ]> forward. We are interested in your 900MHz radio to start.
5 v5 o' ~* A5 Z) f
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