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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

7 J s& i9 y C! h6 ^9 \* Q客户要求如下,如果哪家工厂可以做,请和我联系
4 y5 l5 D# L3 R4 g/ P > The application that we have in mind is similar to others that we commonly
! G) k% V$ K" x3 w7 u u0 [0 f > have. If we were to pay for FCC approval, we would want to use the modem
5 P' e, T, D" z> units in all similar applications under the same approval number.
# `; h6 E$ [3 X' y5 Z3 x/ `! o > Therefore, we would like to be able to configure the units to a specific
/ l: h( g8 b( t; |: m9 E6 e> application. For the business that we do, this approach will yield more
( h5 J) d- K+ X! `: g, d> sales based on the same product and approval. We are interested in the
; j$ K0 m2 G* Z3 a > following specifications:
. u& `( ^% r, n9 v& V5 N9 i>
9 ~% [9 p+ N1 t7 N* Z> - 2 inputs at the Transmitter with three possibilities;
( m0 U8 w; a. R> 2 analog
3 \! c( {! U4 r" M$ l5 u2 z: Q> 2 digital
- V. O. g$ v7 x; ^ > 1 analog and 1 digital
7 a4 |; i g8 N( e9 M6 e- w. s4 ]>
$ k6 O. F- Z) I2 d# T) ? > - 2 outputs at the Receiver with three possibilities to match inputs
D( e* o2 F+ n' D>
( i5 Q8 S$ y. ^7 G2 z9 q > - Ability to configure/define analog Transmitter input ranges through
2 b* _4 O1 n+ ~/ G, ^> simple programming method to correspond with full-range analog Receiver
$ T! Z' f4 W1 B" P1 }> outputs (0 - full voltage).
8 A2 t+ z: Y8 J>
$ c: Q5 ^' j' ^ _$ o3 s |* X > - Ability to configure and set sample rates for the inputs.
) N/ O V+ }" F" R. C; Y >
' R7 j5 h) u" U* i# U > - Digital output on Transmitter that turns on during the sampling period.
4 E7 m1 B. l& p; @+ V6 [5 s8 Z& M>
t- H1 X0 Z) z/ r" a. r; n9 f2 Q' @> - Ability to configure a power saving Sleep Mode in the Transmitter by
! L- E; ]1 ?- Z% w) W9 s4 g> both software control and input hardware control.
6 a6 b) ~/ F+ d9 W4 H; A9 G >
# @3 h' c" H# _/ O4 C > In order to configure the units, we would need a way to make the
# }& z# Y0 R( Z/ G v > settings. This would preferably be from a computer terminal so that
2 t7 N- w6 e# i4 \> configurations can be saved or easily duplicated for production volumes.
* e9 p% e) r" C6 }/ ]4 t) w> The units should be small and compact with shielding, and able to mount
+ K% @% ?9 y! }- e+ b> to a printed circuit board with header connector.
M/ J& F; K/ L1 a. g>
9 n. C% S6 V. s( @5 J: h6 |$ g+ F> At this time, we are interested in samples of a pair of modems that
3 S$ ?0 _% Y$ B9 O7 j1 p' k6 r> might be similar to this proposed system. We do not expect that you
U' }9 h; L5 m3 u% y> provide all of these specifications at this time. I can describe our
7 z3 e! v' _+ e4 ~2 W7 M5 `$ W) k > immediate application needs in the next email if this project is of
# O" d# F2 V. [1 L > interest to you. Perhaps you can make the samples by those
$ T- q9 C$ ^! T; a/ D+ j > specifications. This will allow us to test your radios before we move
0 h/ _, L& Q" S" B5 y! a# a! T > forward. We are interested in your 900MHz radio to start.
" \' I2 [: Q! ?: A* V# a
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