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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! T8 k% A: M* |客户要求如下,如果哪家工厂可以做,请和我联系
4 Q; Z6 k: z4 d7 ?& h/ @> The application that we have in mind is similar to others that we commonly
3 @* f1 J" j/ _9 \" C> have. If we were to pay for FCC approval, we would want to use the modem
3 r( K' t! Q& k" Z1 _> units in all similar applications under the same approval number.
# M1 u$ G8 b# Y1 G > Therefore, we would like to be able to configure the units to a specific
$ [% A" j0 M; i8 j& H& b> application. For the business that we do, this approach will yield more
$ L+ @- _& V' c Q$ V6 X. p> sales based on the same product and approval. We are interested in the
0 L% E& Y( Z5 ^/ f* T( v> following specifications:
; G6 a0 ]1 R0 o: b# R1 h' p >
8 U/ h: G! q) w* {$ T> - 2 inputs at the Transmitter with three possibilities;
' h% C& X$ F8 I y# g/ W6 V Y$ l6 T> 2 analog
4 ?0 K l7 |3 {( }/ |1 P4 H > 2 digital
! Q. H0 L" f9 F2 w0 a> 1 analog and 1 digital
7 s) q! O+ e' w1 n4 g/ F >
6 }1 N, ?/ D2 D! H" s& i1 _: Y > - 2 outputs at the Receiver with three possibilities to match inputs
& B: D8 X( A [; f>
2 `8 d1 ?" ^. \9 S8 Q6 M > - Ability to configure/define analog Transmitter input ranges through
8 x# l4 m1 S$ m- l5 I > simple programming method to correspond with full-range analog Receiver
7 L% x z, `/ E i0 K> outputs (0 - full voltage).
. t1 I7 q( Y+ o. | >
5 v9 g* I+ L, Q. Q: t > - Ability to configure and set sample rates for the inputs.
- } w9 Z* n3 a A8 T" u& h >
p, U3 |& U9 r9 m. a. t > - Digital output on Transmitter that turns on during the sampling period.
, j# j' g( ~& T9 R' ]# k >
R, k4 o; P. x/ G! e" H> - Ability to configure a power saving Sleep Mode in the Transmitter by
0 K F9 R$ H ]. y& W" `3 h- a/ [> both software control and input hardware control.
1 s9 S# |( b l8 V$ {" P >
( J9 o* h1 J0 |5 m u# d& ^> In order to configure the units, we would need a way to make the
4 ^; `7 Z F# I+ c7 i$ U8 V9 b `7 H0 N > settings. This would preferably be from a computer terminal so that
$ U$ B! u1 g! J/ `% R+ T > configurations can be saved or easily duplicated for production volumes.
7 V* V; J" ~# t7 @* ^ > The units should be small and compact with shielding, and able to mount
+ `1 J2 I- q8 H- Q > to a printed circuit board with header connector.
4 J) u! c1 G* W>
& [% Y) t( B2 R# Y% i" k* F > At this time, we are interested in samples of a pair of modems that
3 k; L; d6 u% K$ ^* b > might be similar to this proposed system. We do not expect that you
# F* @' f0 F1 c> provide all of these specifications at this time. I can describe our
0 K# L" p) d' i0 q> immediate application needs in the next email if this project is of
, X4 ]" F+ O- g' K( k# C x > interest to you. Perhaps you can make the samples by those
' L% E# |& G( ^/ M0 a1 j0 A+ B > specifications. This will allow us to test your radios before we move
# h/ ~( ]6 D' C( x# A> forward. We are interested in your 900MHz radio to start.
( k; x% J/ q. s
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