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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

. ^# y# r. c! ~% J7 O w2 y 客户要求如下,如果哪家工厂可以做,请和我联系
/ _8 B& x- I7 d, a/ h > The application that we have in mind is similar to others that we commonly
" G! q5 L: i+ T, a1 o l8 D > have. If we were to pay for FCC approval, we would want to use the modem
: p; r c& n$ j> units in all similar applications under the same approval number.
6 F- F) `+ h1 G9 B> Therefore, we would like to be able to configure the units to a specific
! N U! E# D) L5 G# [% h' [> application. For the business that we do, this approach will yield more
* r; G$ ~1 ^# G0 P+ {( O; N' k> sales based on the same product and approval. We are interested in the
+ r+ k/ h$ B) |$ |. J" v; P6 ^ > following specifications:
& M! ]% A. D5 X4 G% a >
' M* F9 g9 M8 x: W1 D% i+ j. F > - 2 inputs at the Transmitter with three possibilities;
- o! I0 b9 `! \+ W9 H9 ^* g% ] > 2 analog
. F& [# t( {6 F; E" D+ O: M z > 2 digital
6 q, G* K; k; J1 Q5 P5 s! [% g > 1 analog and 1 digital
, W& V, \ O( ~* h5 M8 g>
: ^5 ^3 g' O4 r: C> - 2 outputs at the Receiver with three possibilities to match inputs
( A# ?& c3 q0 V0 y# I. A3 J) Q' {>
8 U5 J. }* h }$ j( \> - Ability to configure/define analog Transmitter input ranges through
& ?' w8 _( k( X> simple programming method to correspond with full-range analog Receiver
" H- S3 P' v" o" t > outputs (0 - full voltage).
% v; Z3 I$ n0 ]3 S: I# K3 F# l, K>
4 j/ A: `" `' g$ r, T Z > - Ability to configure and set sample rates for the inputs.
& N/ N0 {2 n8 ]/ }>
+ ?+ d& h& D( |> - Digital output on Transmitter that turns on during the sampling period.
/ v$ A# V7 l. w) Q$ M; B>
; I/ {7 f# d$ q1 R, X2 ~ > - Ability to configure a power saving Sleep Mode in the Transmitter by
) ?9 w, ^8 T5 N" M> both software control and input hardware control.
( [4 s1 I- t0 F; Z) `- R1 ? >
, q# \/ X* P0 z, k& }0 T: l > In order to configure the units, we would need a way to make the
5 j* m- g2 w1 l w( X, r > settings. This would preferably be from a computer terminal so that
% o8 g( y4 u$ q! d > configurations can be saved or easily duplicated for production volumes.
+ Q$ P D5 n* J N6 I* e> The units should be small and compact with shielding, and able to mount
+ z# M [4 c1 ^) ^> to a printed circuit board with header connector.
8 x2 g8 y( `0 |>
8 T. j7 c ~7 N! r- n% _- M- |* ` > At this time, we are interested in samples of a pair of modems that
) A% L% G; ]/ b2 L1 e# J> might be similar to this proposed system. We do not expect that you
& _6 `# F& p2 T" ]4 y4 G. S& g> provide all of these specifications at this time. I can describe our
' ^+ }. p. z0 J7 e6 ^& A > immediate application needs in the next email if this project is of
- ?' x- F& W* \& t6 _> interest to you. Perhaps you can make the samples by those
' s5 z$ W& e$ [7 k9 j > specifications. This will allow us to test your radios before we move
1 x$ v/ T6 D# b2 R6 W: g4 n2 y > forward. We are interested in your 900MHz radio to start.
+ l, C9 r5 }% `& F) M7 F0 Z
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