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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

* a3 W, z! o+ n) z* ] 客户要求如下,如果哪家工厂可以做,请和我联系
+ U; [( Z2 w2 X% L# j> The application that we have in mind is similar to others that we commonly
; R% ]. ^% ?: d w& c. S > have. If we were to pay for FCC approval, we would want to use the modem
2 x! U0 P$ M6 v# J > units in all similar applications under the same approval number.
* D- Q) |8 v8 j0 f6 F7 i4 I> Therefore, we would like to be able to configure the units to a specific
7 k p- x4 c* y: }& Q> application. For the business that we do, this approach will yield more
8 c# `: ^+ i/ q( b0 m: H o > sales based on the same product and approval. We are interested in the
1 n" D5 m4 k7 j > following specifications:
0 P; w; Z- H. E) f >
3 |4 _/ L! Q2 q6 ^: R2 n > - 2 inputs at the Transmitter with three possibilities;
9 \: Q- K4 l8 A) A# s. l> 2 analog
4 B6 |- A1 R% F) \: I( d0 v > 2 digital
. Z1 d: G: z8 U5 N1 H> 1 analog and 1 digital
; d1 V3 B4 s* W# g7 q6 z7 [ >
! j) X# Q2 [+ y: k: q Q > - 2 outputs at the Receiver with three possibilities to match inputs
7 _. Z+ k [+ z) i2 t# e- _ b: a >
1 Z& ?# ?2 H0 [( t# L/ `& | > - Ability to configure/define analog Transmitter input ranges through
, H) b6 ~) g0 v: }9 P> simple programming method to correspond with full-range analog Receiver
$ m' v, i2 S8 l% S, G7 M > outputs (0 - full voltage).
' c3 l: I4 N. W0 |$ M" A) e$ N1 h >
1 C. D- a* g/ P( b > - Ability to configure and set sample rates for the inputs.
& U E" K c4 C4 S" D/ m" ~ >
8 J% c. x: n- r% k# ` > - Digital output on Transmitter that turns on during the sampling period.
7 V) i' O1 Y$ F, M, {: a >
" g; { T3 ], H1 u6 G: k > - Ability to configure a power saving Sleep Mode in the Transmitter by
/ n3 A* M0 X' u2 u7 O% d$ E u* l; P > both software control and input hardware control.
+ H8 T; S& D4 o/ q" S% K0 m>
/ U4 c2 t( V' Q; P& G" g4 ? > In order to configure the units, we would need a way to make the
6 F0 b7 @0 E; B z> settings. This would preferably be from a computer terminal so that
' [0 r5 W9 }' l; b6 O8 r# V& k4 @ > configurations can be saved or easily duplicated for production volumes.
& T! U) ]6 a& d1 s$ n7 s> The units should be small and compact with shielding, and able to mount
' ?2 Z" E; V/ J > to a printed circuit board with header connector.
$ |5 n! n8 D0 y- q1 k( B. h2 b3 B >
5 C7 Z( s6 A( q% u8 T; b6 r# q$ Z& p K> At this time, we are interested in samples of a pair of modems that
6 S# U& C* f$ N4 P1 ?4 j1 A, c > might be similar to this proposed system. We do not expect that you
- Z- g0 y2 J* z) R$ l4 {* w: r > provide all of these specifications at this time. I can describe our
- y( j, t* l6 v3 G, v > immediate application needs in the next email if this project is of
& q4 r2 \3 K( W$ ]. c/ K' B6 |4 Z& _0 P > interest to you. Perhaps you can make the samples by those
! L: @# ~2 V* S Q. \+ X> specifications. This will allow us to test your radios before we move
! @; T& p% f2 w$ B( Q, n# k> forward. We are interested in your 900MHz radio to start.
% C2 d7 e) E* L5 x7 Q$ M
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