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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

: j4 W. ]- K' Z: b0 T2 _, f- } 客户要求如下,如果哪家工厂可以做,请和我联系
% W5 v$ v$ {4 p1 K" r" y: W( O g> The application that we have in mind is similar to others that we commonly
4 U( a5 U; d! U5 }( h0 k2 L! k$ {> have. If we were to pay for FCC approval, we would want to use the modem
9 y4 {6 N/ a5 t) E4 s6 ] > units in all similar applications under the same approval number.
: K0 O% q5 o6 i" `- {> Therefore, we would like to be able to configure the units to a specific
5 G; T$ }( I" B' `% ^ > application. For the business that we do, this approach will yield more
+ l7 L6 G. c) O q6 X* i1 p9 e> sales based on the same product and approval. We are interested in the
/ D3 \3 [6 B0 `2 r+ R4 ] > following specifications:
' ?0 X) }2 _# `0 h$ v3 | >
0 U) U1 ]" W! X4 S( f7 R: e> - 2 inputs at the Transmitter with three possibilities;
: P# \- g: Y X8 I- A; \> 2 analog
$ E3 k# G/ b$ P/ e; C > 2 digital
' [& x4 y6 q5 i& E> 1 analog and 1 digital
* ?* ~4 x1 c9 e# O: A >
* [$ _1 Q( f6 i7 v2 v; y > - 2 outputs at the Receiver with three possibilities to match inputs
) \. G3 _( \, b0 k+ v8 U0 _ >
+ x r. X; D( m7 S) h" e > - Ability to configure/define analog Transmitter input ranges through
1 |+ }3 C" F D! O> simple programming method to correspond with full-range analog Receiver
! ?. j' X7 v( ^6 Q$ W; D > outputs (0 - full voltage).
- W9 h2 S# x) }>
/ s6 h# l; l) E: A/ O1 b' b; Q > - Ability to configure and set sample rates for the inputs.
$ W% }) \) @7 L! U* A5 W* e5 o1 i >
) o3 r+ [0 h, w2 v/ d > - Digital output on Transmitter that turns on during the sampling period.
3 C) E# x' {1 Q4 t>
7 h) r1 L2 y' w* z > - Ability to configure a power saving Sleep Mode in the Transmitter by
1 Y0 N* h \2 l* c> both software control and input hardware control.
" f7 e6 b' q- Z) i >
; A$ {* @$ j5 a6 o > In order to configure the units, we would need a way to make the
( k! P2 B7 Q$ R9 `1 U> settings. This would preferably be from a computer terminal so that
. ]9 q; c9 a G> configurations can be saved or easily duplicated for production volumes.
# w/ J6 U1 _* u7 g6 Q > The units should be small and compact with shielding, and able to mount
: E0 T. y7 ^; H6 W> to a printed circuit board with header connector.
, I3 ]* I; s6 Z. c9 Y >
& N0 j5 i* d. h! f; D: X1 _6 K> At this time, we are interested in samples of a pair of modems that
/ P! d) m! `5 j V > might be similar to this proposed system. We do not expect that you
* c' F" S- T' ~, w> provide all of these specifications at this time. I can describe our
- w1 ^: D$ G: o& \ > immediate application needs in the next email if this project is of
: b9 S$ U/ j% [# g/ l p> interest to you. Perhaps you can make the samples by those
l$ T8 Q! w, o" T4 v3 @ w5 C > specifications. This will allow us to test your radios before we move
P0 ?: D/ i! n, Z; e' ^ u ^> forward. We are interested in your 900MHz radio to start.
* G1 f7 J+ e" a# q, u) l
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