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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

0 f; F) g" `: s( r P% O/ n客户要求如下,如果哪家工厂可以做,请和我联系
# V) Q5 B2 S ^ > The application that we have in mind is similar to others that we commonly
; A' p) { b* F$ Z( n1 B3 ]> have. If we were to pay for FCC approval, we would want to use the modem
8 _9 r3 W6 F, W- A& ]0 Q$ e6 W > units in all similar applications under the same approval number.
+ y& \1 |3 d2 V: s0 T > Therefore, we would like to be able to configure the units to a specific
% }5 ^, u7 q f' m> application. For the business that we do, this approach will yield more
4 ~8 A: Z# `* o1 {, ~' {" n: }> sales based on the same product and approval. We are interested in the
8 y5 o1 e) }9 V8 r- X1 l: d8 h, Z> following specifications:
4 U" C, {0 f, v/ U, J3 B>
( `, {' N0 v8 B% a3 M, o6 E8 ]- P> - 2 inputs at the Transmitter with three possibilities;
7 \6 j3 {5 f/ v1 P6 ^+ D> 2 analog
3 s+ I! d; p8 g7 o# T> 2 digital
: @9 I# t$ i) _2 {> 1 analog and 1 digital
& R1 z) Q# w9 @4 u5 O9 u >
) i8 @8 j0 v$ E C& _# P> - 2 outputs at the Receiver with three possibilities to match inputs
+ R" \+ j! W2 ]/ S>
9 e- o+ E: g4 V3 `: {1 E> - Ability to configure/define analog Transmitter input ranges through
1 a" F# L% R& X* _ > simple programming method to correspond with full-range analog Receiver
9 D- L# |* X7 D, @) X' G > outputs (0 - full voltage).
& E$ z& K# p9 E5 a7 @( a >
% h5 |. ]! H e > - Ability to configure and set sample rates for the inputs.
; s8 U1 E' Z! { >
1 M: u* {2 _, {3 l9 H0 l% k > - Digital output on Transmitter that turns on during the sampling period.
' R" ]8 N0 W- R9 R( C2 e* x) A>
$ s, ^" R6 j" |2 E( c; z7 ~ > - Ability to configure a power saving Sleep Mode in the Transmitter by
& h, y: H. ?5 T) L: t6 W, a1 T* e> both software control and input hardware control.
1 n6 U. d. ^1 B6 }' R! H4 Q >
) S/ T% B" i m > In order to configure the units, we would need a way to make the
# n# O' q6 d. [: |9 h1 e' c [* X* l> settings. This would preferably be from a computer terminal so that
- ]' E* ?1 f4 E. c> configurations can be saved or easily duplicated for production volumes.
1 E1 y9 Y3 e6 p" i > The units should be small and compact with shielding, and able to mount
[3 F' Q6 F- R4 @& N8 h* M* g5 E, q > to a printed circuit board with header connector.
0 P' [% {! o% C& w6 a, B- k/ u J8 H/ ] >
6 S; ?7 F# v) l6 D+ K1 ]% m6 |> At this time, we are interested in samples of a pair of modems that
0 i% m2 a" b: g1 ]# s > might be similar to this proposed system. We do not expect that you
" E# |$ v/ s" F! D > provide all of these specifications at this time. I can describe our
" r( p5 x& [: _! f! B) K! t" a6 ? > immediate application needs in the next email if this project is of
- n8 [. J5 y x1 ^ > interest to you. Perhaps you can make the samples by those
: A/ @0 ^/ H# o9 M" n& t0 V/ {> specifications. This will allow us to test your radios before we move
9 P/ Y8 Z; S9 ?8 d) i f > forward. We are interested in your 900MHz radio to start.
7 y/ a; B0 S6 o! C" L9 ?/ f
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