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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 x" @, d7 y: L/ s& i; N8 W) l 客户要求如下,如果哪家工厂可以做,请和我联系
) p6 _" t5 s+ @ > The application that we have in mind is similar to others that we commonly
. f* S9 @# f% z' |0 I > have. If we were to pay for FCC approval, we would want to use the modem
. Y& g. [* i) ]7 k: m" }0 G > units in all similar applications under the same approval number.
/ Q6 C( Q+ l, t! H, F+ p> Therefore, we would like to be able to configure the units to a specific
* v7 |' O6 R7 c3 |> application. For the business that we do, this approach will yield more
6 _* ^/ x: g: m0 P5 b > sales based on the same product and approval. We are interested in the
y4 Q& v& j. l6 Z/ a3 l> following specifications:
- l, ?8 Y! K! R2 ]8 a>
& v t1 q. ~, ]2 m& r+ m0 y5 t > - 2 inputs at the Transmitter with three possibilities;
8 W$ X' E: B$ i: c ~5 m> 2 analog
; ^. q: Q) t8 m% [# B2 q, U6 ^/ s> 2 digital
' e% ^; J, s; b# m/ A9 E5 |$ H; w> 1 analog and 1 digital
/ Y. u5 J9 T3 A! H2 }9 L0 p3 g >
; v/ x! o+ w# Y' s0 A; Y8 O > - 2 outputs at the Receiver with three possibilities to match inputs
, ~2 Z. A/ `, q, A; B- \1 z >
8 `6 _0 `/ L+ [$ A8 W > - Ability to configure/define analog Transmitter input ranges through
8 I ^4 h: W8 N > simple programming method to correspond with full-range analog Receiver
. m* I" N/ h" X$ p7 E > outputs (0 - full voltage).
) P0 h2 a; v# k0 i/ B0 {! k% R>
' }* ]0 p8 B$ P& Z% c4 ^0 t5 s> - Ability to configure and set sample rates for the inputs.
# S/ [ M" W9 J! c >
' e" Z5 z4 ] ?; t: H > - Digital output on Transmitter that turns on during the sampling period.
{6 ?; z& \! f8 n >
. c2 w; `5 s3 Y! b7 v S! x. G > - Ability to configure a power saving Sleep Mode in the Transmitter by
# V8 @+ G2 y+ p) @, n5 N7 r> both software control and input hardware control.
, x; R( |! t$ E2 P& g7 C/ ^ >
, R: B, w6 m4 y c; n ?4 ^& v > In order to configure the units, we would need a way to make the
+ [( m7 Y1 r" u. t0 H> settings. This would preferably be from a computer terminal so that
% E; D. R4 [$ S) m: R > configurations can be saved or easily duplicated for production volumes.
* y! ~ E6 E- S- z> The units should be small and compact with shielding, and able to mount
4 K9 U& ` t' i3 | > to a printed circuit board with header connector.
( C, F8 k: ~# x3 V+ \: \ >
c; J; u: y. `6 ^# U9 t> At this time, we are interested in samples of a pair of modems that
6 @/ s* V6 ]* C% g# q" U> might be similar to this proposed system. We do not expect that you
* V0 E/ d( D* _0 D > provide all of these specifications at this time. I can describe our
- J4 O; I/ {1 X3 B2 s > immediate application needs in the next email if this project is of
* }8 i5 U" Z$ W) N# O. G6 `7 j0 v( l > interest to you. Perhaps you can make the samples by those
/ F& Z# S% l: C3 Q7 ^! p9 K > specifications. This will allow us to test your radios before we move
i2 u4 }, C5 m& f. h > forward. We are interested in your 900MHz radio to start.
& S7 @6 F; v6 d+ J4 T' z, o
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