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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

4 j. }# e7 Q. `9 i- g {0 n 客户要求如下,如果哪家工厂可以做,请和我联系
0 b" k' N, M2 @/ b2 r- s7 B1 u6 Y > The application that we have in mind is similar to others that we commonly
! [3 R$ S+ _$ M > have. If we were to pay for FCC approval, we would want to use the modem
; O3 `& z @# O > units in all similar applications under the same approval number.
% @! Q" g+ x; Q0 J > Therefore, we would like to be able to configure the units to a specific
4 N0 l1 U9 y8 Y8 r > application. For the business that we do, this approach will yield more
, z3 v% m' d$ P. I# r > sales based on the same product and approval. We are interested in the
4 W3 |4 m6 G, ? > following specifications:
" z8 ^8 ?, d) r>
1 H6 m. n1 x6 j6 ~6 _ > - 2 inputs at the Transmitter with three possibilities;
2 J3 j; n$ ^/ g > 2 analog
& |6 f4 r3 U' @, m9 z! c% F > 2 digital
6 d C4 x% N. y3 B) S6 [& @& Z, G > 1 analog and 1 digital
& t, y; e* p9 V. m* ]6 @>
8 ]8 [' m* U8 L& p > - 2 outputs at the Receiver with three possibilities to match inputs
( L' u5 Y2 K5 t; Y, B D >
& t* _ \) p0 v2 Z5 y> - Ability to configure/define analog Transmitter input ranges through
' R) O* ]2 d) U > simple programming method to correspond with full-range analog Receiver
7 B# ]2 o2 S- I9 d: q> outputs (0 - full voltage).
* R8 O( j" ~( i) h" k( x: U; @# L >
4 I% H k4 }% _ c+ o > - Ability to configure and set sample rates for the inputs.
8 y4 k f$ f3 Q/ U' Y) J7 a6 B >
" o2 |% H+ f4 D9 a- \: \8 A& c5 x> - Digital output on Transmitter that turns on during the sampling period.
; W/ @3 M$ P2 L3 A8 `# o7 `; L>
1 i9 L. y+ J9 c) T( k > - Ability to configure a power saving Sleep Mode in the Transmitter by
2 w# |! h( ?: {9 T7 c" Z8 C> both software control and input hardware control.
, D2 l/ n$ D5 `: K, R) A3 M >
5 J0 a: o1 z* ~* m7 ?0 U, s% }" u ^> In order to configure the units, we would need a way to make the
+ ]8 p7 k# _2 U9 R6 D> settings. This would preferably be from a computer terminal so that
& X/ G9 Y6 B# z$ j" t' A { > configurations can be saved or easily duplicated for production volumes.
4 l7 I- x6 N$ j. h/ l > The units should be small and compact with shielding, and able to mount
; {- ]( C" n7 ]: ^( Q) a > to a printed circuit board with header connector.
$ E' j* x" G# P7 M% k7 F >
; I, x& p! w9 ^* w. C8 i+ ^% S% H> At this time, we are interested in samples of a pair of modems that
/ V% g- |) V8 V7 s7 Y( R2 N+ y# Y> might be similar to this proposed system. We do not expect that you
& n1 _0 l) ~2 d% t5 w1 o > provide all of these specifications at this time. I can describe our
/ O n4 T1 \, J/ S! Y. p9 R; X6 h) b> immediate application needs in the next email if this project is of
: U" R0 c8 q$ U% P3 g: L% \ > interest to you. Perhaps you can make the samples by those
! Q* P# x: l6 U: N > specifications. This will allow us to test your radios before we move
+ j( @7 G* \0 @' j$ q) C- c8 K > forward. We are interested in your 900MHz radio to start.
. u: l, e; w4 u3 v h0 g1 n# f( `1 n b
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