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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

9 p2 f6 b% L( x& T" c- _3 ?6 e( M 客户要求如下,如果哪家工厂可以做,请和我联系
P/ G- w9 x2 ^ k4 Z> The application that we have in mind is similar to others that we commonly
% I" V9 @$ x) b > have. If we were to pay for FCC approval, we would want to use the modem
/ L/ g5 s$ a5 J > units in all similar applications under the same approval number.
1 E6 N: g3 ]! p# l( }9 }> Therefore, we would like to be able to configure the units to a specific
9 `# \8 f: j. W3 L9 F9 M> application. For the business that we do, this approach will yield more
- }% h0 Y, X. [. A4 m> sales based on the same product and approval. We are interested in the
/ S7 S+ H x1 v5 f: z7 Q( k/ V3 z! M& F > following specifications:
* R$ z2 k3 s0 r2 Y >
& O' z, O4 Z- P% Q" E> - 2 inputs at the Transmitter with three possibilities;
6 J2 Y' p! m0 F- J' `$ s > 2 analog
9 p1 p3 s$ U2 r; E% u> 2 digital
/ a% _- G8 `6 f1 w0 \6 K G; Z1 Y> 1 analog and 1 digital
/ y) W" p( P0 V/ z >
; Y0 f9 w/ X0 j8 [1 |$ X > - 2 outputs at the Receiver with three possibilities to match inputs
3 P( I& @7 g- p/ |$ W% N" L2 p- c>
8 q4 Q2 F7 d0 b: \+ E) A% s; F > - Ability to configure/define analog Transmitter input ranges through
/ [6 y3 I- M( H, A > simple programming method to correspond with full-range analog Receiver
2 `* k, {6 c2 I> outputs (0 - full voltage).
" E9 c( j8 j9 h& w4 E1 x; {0 E>
6 g- y) S; u! D > - Ability to configure and set sample rates for the inputs.
0 k+ E2 r1 _9 \% R: r >
+ U0 p7 p8 _" q4 T7 H8 G5 R5 t > - Digital output on Transmitter that turns on during the sampling period.
' r7 w$ x, D* `9 p( R>
" U4 x7 o& j- Q" {, L9 C6 }; I> - Ability to configure a power saving Sleep Mode in the Transmitter by
( G. A! h- D/ |> both software control and input hardware control.
8 P8 ]" X- O! a9 k >
! A6 s z2 f1 ?1 T3 r6 o > In order to configure the units, we would need a way to make the
" K& K* |4 ]7 V& b > settings. This would preferably be from a computer terminal so that
! @# N, @: f" R2 f1 Y5 d> configurations can be saved or easily duplicated for production volumes.
4 C1 b, x& n: J( d7 e5 A7 ~: U) U> The units should be small and compact with shielding, and able to mount
1 `' G, c: B2 U9 h" y> to a printed circuit board with header connector.
5 }% b- y" R& x3 `5 v/ x4 J>
5 b8 g# A6 O6 F- u u' B> At this time, we are interested in samples of a pair of modems that
" \7 K! Q5 N4 l' ~ > might be similar to this proposed system. We do not expect that you
5 A$ S' u) \* x > provide all of these specifications at this time. I can describe our
g( `' V. g, I* Y! z4 m: f> immediate application needs in the next email if this project is of
9 ~$ e9 w9 m5 X, r; L! N> interest to you. Perhaps you can make the samples by those
s' _) G4 B% q3 G t$ J> specifications. This will allow us to test your radios before we move
! `* `# m9 z6 O- }+ A! j# e6 |> forward. We are interested in your 900MHz radio to start.
" @, U3 N2 @: V% U
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