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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

% s$ _" _$ X& f& ?, D8 a客户要求如下,如果哪家工厂可以做,请和我联系
) @ X) ~3 J$ O7 s/ w4 a> The application that we have in mind is similar to others that we commonly
0 ~/ B! P$ R) d6 \" u2 i" a$ ]1 v> have. If we were to pay for FCC approval, we would want to use the modem
* I5 f& g" L n3 T; ~, o > units in all similar applications under the same approval number.
- W4 }; ]0 c2 o4 Y4 {6 N+ N9 v3 L B > Therefore, we would like to be able to configure the units to a specific
# f' ]7 V9 K5 H/ u& z3 u> application. For the business that we do, this approach will yield more
, U( O% N/ G9 N* ]; [5 V > sales based on the same product and approval. We are interested in the
, A/ _* @& j0 Z$ n. _> following specifications:
9 G" U; d3 J4 u0 V& S) i>
B1 W0 f1 Q: L9 ^ > - 2 inputs at the Transmitter with three possibilities;
- h K1 t6 C+ Y> 2 analog
8 w/ j, g' T' p, z> 2 digital
" |4 A( ]! r* q% k- K; s > 1 analog and 1 digital
' W) J5 \' Q9 b o- h) B; Q1 l>
! r( {) Y" n5 v3 g" [> - 2 outputs at the Receiver with three possibilities to match inputs
. W/ L0 P/ d* _( l+ d>
$ O" J, i: U5 [8 b. s1 E. Y) O3 Q> - Ability to configure/define analog Transmitter input ranges through
0 X% i% ?! p3 b- y( r+ \ > simple programming method to correspond with full-range analog Receiver
& [# _- G- G. Z" b( z> outputs (0 - full voltage).
5 Q$ Z7 h4 o3 u0 Q >
) I1 h; @/ W: Q4 U# Z> - Ability to configure and set sample rates for the inputs.
# A m1 q5 u: g+ [, Q4 _- u* S$ Z>
$ t8 }6 b8 e5 {5 o) n> - Digital output on Transmitter that turns on during the sampling period.
7 W5 C9 g( V# e: w, L>
# K; c; A9 V/ v" h> - Ability to configure a power saving Sleep Mode in the Transmitter by
$ d! ~6 t& ^7 n$ S3 ]' Y' X > both software control and input hardware control.
5 C7 @6 G; \0 O8 f0 Q" T>
7 j) I6 c- n- a# ^ ` > In order to configure the units, we would need a way to make the
& _& Q, `( {" B2 a" i> settings. This would preferably be from a computer terminal so that
! o6 W2 `: L: W: N > configurations can be saved or easily duplicated for production volumes.
0 K* o: g+ F7 c. j# D5 [; E, T( }> The units should be small and compact with shielding, and able to mount
9 D3 W/ I8 g( |& W* @; ~ > to a printed circuit board with header connector.
' x" y- p# k7 `+ {, T >
9 f1 c6 E7 n6 H; e7 z5 h% g> At this time, we are interested in samples of a pair of modems that
1 r/ \) w% _+ h# X$ g > might be similar to this proposed system. We do not expect that you
+ \/ L1 j& m2 Y' C Y( k1 ~0 N> provide all of these specifications at this time. I can describe our
5 {* f1 A% n: V$ G! e> immediate application needs in the next email if this project is of
, ^/ O, Y( g& B; ]7 v: R/ o8 A( s> interest to you. Perhaps you can make the samples by those
$ k1 j5 ]- E- t0 A8 N2 | > specifications. This will allow us to test your radios before we move
. G/ A6 s ~% S1 n4 o> forward. We are interested in your 900MHz radio to start.
: p, p' G4 Z# }8 W' P W; f: R
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