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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

# q, h/ w& \: M; V( u 客户要求如下,如果哪家工厂可以做,请和我联系
" ~0 i) |0 t/ q5 v% j) F> The application that we have in mind is similar to others that we commonly
( ] o2 E; K; ~% R- ~4 E > have. If we were to pay for FCC approval, we would want to use the modem
2 L5 t/ n% \0 T1 m5 G9 W L. ]; _3 T5 T > units in all similar applications under the same approval number.
5 r9 W0 S0 P8 L0 y; B > Therefore, we would like to be able to configure the units to a specific
3 f- I: g# @; L. i/ K> application. For the business that we do, this approach will yield more
6 i& B# V$ @6 c; \ > sales based on the same product and approval. We are interested in the
% _: `2 ]: ~3 A/ G2 R > following specifications:
0 h* \7 w* o( ?/ q>
5 a1 B% k6 F* j. a > - 2 inputs at the Transmitter with three possibilities;
" H- k0 r3 v& y1 ~4 @> 2 analog
+ @. x1 C, D7 d- T5 j$ Q> 2 digital
/ I/ h4 z4 }- R+ @; D# t% D > 1 analog and 1 digital
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! _$ B; k7 s) q9 O1 O% g> - 2 outputs at the Receiver with three possibilities to match inputs
0 x. o6 n k5 n! _% ] >
: N7 s, ^0 w' \- n' K% |( K> - Ability to configure/define analog Transmitter input ranges through
& M5 l6 u4 i% K- L4 F" \ > simple programming method to correspond with full-range analog Receiver
3 }5 G5 Z( M& g& L8 T> outputs (0 - full voltage).
% w8 Y1 u4 T: ]" B2 o>
- T6 T, H8 V D' C6 j: |9 u1 s7 V> - Ability to configure and set sample rates for the inputs.
: r8 S4 `9 p9 Q>
) C2 o+ K4 \- c0 n. V. X> - Digital output on Transmitter that turns on during the sampling period.
- V0 I/ ?( p3 {& q6 ?! p7 C>
/ F# p) O! c( p3 f> - Ability to configure a power saving Sleep Mode in the Transmitter by
7 e9 V' Z1 M$ T7 ^0 T/ R > both software control and input hardware control.
- @$ p/ E' v2 H6 p+ E6 q>
5 G4 Q3 g0 U0 v/ E9 _; K7 W5 D> In order to configure the units, we would need a way to make the
; ^# P2 R# [# ^6 W( M4 A> settings. This would preferably be from a computer terminal so that
/ }+ a% y* I5 W; x3 g& ~5 n > configurations can be saved or easily duplicated for production volumes.
/ c0 Y# q, r/ j> The units should be small and compact with shielding, and able to mount
& j5 u% \7 r8 R1 c6 k. ~> to a printed circuit board with header connector.
9 ]. L. H/ D* R. E. O >
2 N$ z" j& L4 Q( W0 i) v, E> At this time, we are interested in samples of a pair of modems that
, G0 {7 r) ^+ x- C2 R> might be similar to this proposed system. We do not expect that you
! z1 r# l, M6 @* W > provide all of these specifications at this time. I can describe our
+ m& b4 i! ~/ L > immediate application needs in the next email if this project is of
6 U- m% I+ P, O" T; f& z > interest to you. Perhaps you can make the samples by those
M& I: z1 @7 S> specifications. This will allow us to test your radios before we move
: K% ]4 j: G0 D2 j$ `9 S W- F [> forward. We are interested in your 900MHz radio to start.
+ C" B6 H' V! F
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