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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

8 @) k2 s0 \0 j( _ 客户要求如下,如果哪家工厂可以做,请和我联系
. J7 B4 }' R. t> The application that we have in mind is similar to others that we commonly
# q% r# C4 T* T' g' u! L6 G > have. If we were to pay for FCC approval, we would want to use the modem
) b5 |4 X/ G7 Z6 X6 F- N> units in all similar applications under the same approval number.
( u) `: q3 C0 E# T: r* {. b: P> Therefore, we would like to be able to configure the units to a specific
4 m7 e+ _4 u h, T% p8 _4 S0 [> application. For the business that we do, this approach will yield more
1 G8 ` m! q! V) n> sales based on the same product and approval. We are interested in the
6 m- Q# J- O2 g* Y% Q> following specifications:
6 X9 K# i6 u6 J" |' u& x. U- l >
' u) l" ~- q: m8 O* W > - 2 inputs at the Transmitter with three possibilities;
- o2 M& o2 y- p. o7 ]> 2 analog
" [: z* n9 M$ }. i$ E g* m0 I1 C' @ > 2 digital
" b i6 w9 _% K) ?) r: W > 1 analog and 1 digital
/ z+ H2 C% f* f+ U' x3 l>
. {6 L% F% [; F+ K. A4 J > - 2 outputs at the Receiver with three possibilities to match inputs
( ?' \" S0 ?7 n- _# h7 O' D >
, ?! p5 j/ P- y7 V) P > - Ability to configure/define analog Transmitter input ranges through
4 P# L8 u! k: h; W/ C9 J > simple programming method to correspond with full-range analog Receiver
1 a6 U: h% [% A> outputs (0 - full voltage).
g4 ^/ n& C' x% m% ?( f5 f$ H >
4 g1 a- a' H3 u w- B> - Ability to configure and set sample rates for the inputs.
) r1 ^2 d, N0 \>
4 r7 C! `% n# X > - Digital output on Transmitter that turns on during the sampling period.
# [3 Q1 e, U7 |$ h; _ >
% A: G9 L5 C3 f8 g' c> - Ability to configure a power saving Sleep Mode in the Transmitter by
# ~8 o; t( P- |* c w> both software control and input hardware control.
, S. O. f3 Y' }4 V>
2 G3 d$ H( \$ A2 I. M' C% v1 W. B> In order to configure the units, we would need a way to make the
& r# c2 h; p& P; @9 m > settings. This would preferably be from a computer terminal so that
* _; W! }4 T+ R6 [% s# d> configurations can be saved or easily duplicated for production volumes.
* F$ H4 D8 I/ z8 j+ p3 O |> The units should be small and compact with shielding, and able to mount
0 W- f8 a* l- r0 P$ h > to a printed circuit board with header connector.
9 z4 t9 t7 b9 }" c4 U >
9 I' x/ Y6 V; z4 H; S6 Y> At this time, we are interested in samples of a pair of modems that
4 ^+ F2 v/ ^2 C% B> might be similar to this proposed system. We do not expect that you
7 b' A. ] y8 h8 X9 F; S> provide all of these specifications at this time. I can describe our
1 s. L* C2 c u' { y > immediate application needs in the next email if this project is of
5 H$ |0 G! v$ R& ~' C > interest to you. Perhaps you can make the samples by those
' g5 E* W# y* O$ N& v) W> specifications. This will allow us to test your radios before we move
2 M! [& e/ h/ ^ n> forward. We are interested in your 900MHz radio to start.
( r1 c6 K7 O$ i. ~& W
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