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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

- \/ ~/ _" L, x- v7 a! \. @& p" P' P% U 客户要求如下,如果哪家工厂可以做,请和我联系
) H3 K" H$ s% _: d; x > The application that we have in mind is similar to others that we commonly
. A! ~# \- `: H( ]4 n+ P > have. If we were to pay for FCC approval, we would want to use the modem
q+ A5 V, L$ g7 q- F> units in all similar applications under the same approval number.
/ {- R0 i+ E6 }& L: Y( f> Therefore, we would like to be able to configure the units to a specific
# t% b, z1 |, U) @. H4 _ K) ~> application. For the business that we do, this approach will yield more
7 H5 v% b( Q( o0 c8 P' C6 y' W U> sales based on the same product and approval. We are interested in the
/ A8 j, J$ x0 w o > following specifications:
* @$ c- O" h, u/ u- a, T>
/ C$ I# P6 A0 _& D! i( w# N& [$ X > - 2 inputs at the Transmitter with three possibilities;
5 l" d }) T1 d! H5 ?! n& A> 2 analog
- n; p$ U. ? r > 2 digital
/ V' T+ Q9 ?' O6 R> 1 analog and 1 digital
$ B+ D2 C6 l3 N4 S6 r7 J Z >
, A. v, g4 s. l3 R4 z! Y! H> - 2 outputs at the Receiver with three possibilities to match inputs
" l; C& I, \5 l2 Q2 l& w>
; A+ H5 u$ ~6 r/ C8 {> - Ability to configure/define analog Transmitter input ranges through
& i( I) g8 u1 j > simple programming method to correspond with full-range analog Receiver
6 l) _% Y8 ?! x > outputs (0 - full voltage).
$ T6 g- @- d8 c+ |2 Y o; ?>
6 o4 M: ?( W h" x> - Ability to configure and set sample rates for the inputs.
; ?3 Q8 H, E% i/ z>
+ u! P4 ^5 \7 \% m7 A> - Digital output on Transmitter that turns on during the sampling period.
4 G0 I& a4 b- Q6 y; W8 G: d! i >
, O+ A3 i* [' W: E" D! t1 \# N+ x> - Ability to configure a power saving Sleep Mode in the Transmitter by
6 ^4 q: u" }, ^> both software control and input hardware control.
1 G ~" g5 h, e! k; c, h2 U& [0 _9 G% K>
9 ^% i! b% c/ N3 V7 `. Q > In order to configure the units, we would need a way to make the
- J1 O0 V8 @5 e; u, d# Z > settings. This would preferably be from a computer terminal so that
/ J: R! }! ^! A8 q> configurations can be saved or easily duplicated for production volumes.
. q& n0 X- c f' r; Y2 [! R > The units should be small and compact with shielding, and able to mount
) x7 D4 {& }" Q/ N, O. i > to a printed circuit board with header connector.
9 I* J$ ^2 I! I5 n >
3 N, `- \( W' h6 Q B> At this time, we are interested in samples of a pair of modems that
" }* P( s- G7 E7 a X> might be similar to this proposed system. We do not expect that you
8 K* A( Q' n8 b8 W! \ > provide all of these specifications at this time. I can describe our
/ c7 N5 @ c: e2 V5 h> immediate application needs in the next email if this project is of
% H7 e; I4 w7 Z. [7 F1 o6 `> interest to you. Perhaps you can make the samples by those
2 C2 D9 H, S( M! V0 x; b9 O > specifications. This will allow us to test your radios before we move
/ r- V$ r# B1 G# ?3 f3 j4 `( W > forward. We are interested in your 900MHz radio to start.
- v1 t" s$ S& |' w# l( \
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