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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

" p$ t m3 C/ t& a0 I 客户要求如下,如果哪家工厂可以做,请和我联系
9 S; h# ~ R+ Z; p, O% d> The application that we have in mind is similar to others that we commonly
$ V5 n9 y; q" i0 `, L3 T1 b. o > have. If we were to pay for FCC approval, we would want to use the modem
* t2 ~+ v; w/ y" p2 c) a> units in all similar applications under the same approval number.
$ { k9 Z; f( Q% ]/ r3 l# q5 y> Therefore, we would like to be able to configure the units to a specific
& S; G/ c& e- s7 S> application. For the business that we do, this approach will yield more
4 e* z& N- m$ s; G6 n > sales based on the same product and approval. We are interested in the
# t/ Q2 D' o% W4 T5 c> following specifications:
# R6 ^' L F' I w! e: D4 K9 Z8 W>
5 ?$ _( X1 Z& U# O l' p> - 2 inputs at the Transmitter with three possibilities;
- e, j m* N' ?1 |/ T1 U> 2 analog
m$ M1 s! I' ~> 2 digital
% J- K4 _7 j. F) i q3 s9 E> 1 analog and 1 digital
7 w4 z' M( z8 N/ b" K>
" |2 {; y8 _: S& R2 Z& @> - 2 outputs at the Receiver with three possibilities to match inputs
) r- R& @" } }4 a! g >
2 w( i$ r/ Y* C: ]. X/ |> - Ability to configure/define analog Transmitter input ranges through
6 z& Y6 B2 Q/ e > simple programming method to correspond with full-range analog Receiver
+ F2 Q1 g4 C7 r8 Y5 p+ G > outputs (0 - full voltage).
+ n. f7 y/ L9 c8 v: G>
/ e9 d7 M9 e. V/ S, L& B$ K> - Ability to configure and set sample rates for the inputs.
5 _, D0 t9 p5 R# u, `. [>
2 w$ I& {4 _# X/ V9 K; H8 j> - Digital output on Transmitter that turns on during the sampling period.
9 u! _! l7 ^1 \! s>
; ?5 n3 Y0 x& c$ a > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 r+ t. q( J6 q6 N > both software control and input hardware control.
$ Q5 U% h) i9 j1 b5 M) F! ^% A>
# }2 D4 e# N8 a> In order to configure the units, we would need a way to make the
; h& d2 B. ]" m4 B* F> settings. This would preferably be from a computer terminal so that
" Y( f' G% P' Y' L( Y0 o> configurations can be saved or easily duplicated for production volumes.
1 C" b6 C0 |, H > The units should be small and compact with shielding, and able to mount
2 x, w( q1 ?8 N> to a printed circuit board with header connector.
" _6 T6 S; s T/ I$ N>
6 A) J0 p( T' X3 ~3 U> At this time, we are interested in samples of a pair of modems that
& T0 w4 f& ]1 Q. @6 }. F> might be similar to this proposed system. We do not expect that you
}2 l( v% _ B1 b3 W; w( X > provide all of these specifications at this time. I can describe our
: N0 Y4 ^$ l1 e: f( Q% C. S > immediate application needs in the next email if this project is of
3 l0 P1 m8 D4 a, m g > interest to you. Perhaps you can make the samples by those
/ X1 t* V( i3 S' N2 C) k- H> specifications. This will allow us to test your radios before we move
; n2 j$ _# k% n5 \ _) U4 v+ ^ > forward. We are interested in your 900MHz radio to start.
, `* F' o9 F7 B4 z7 t" t3 E/ O8 P' \4 J
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