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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

1 ]/ M9 T( u7 e$ `5 p客户要求如下,如果哪家工厂可以做,请和我联系
: G6 c8 K' y3 t! Z > The application that we have in mind is similar to others that we commonly
" D/ i# T8 z& f7 @9 n > have. If we were to pay for FCC approval, we would want to use the modem
! B9 x+ G; k/ ~: a. S, q/ g > units in all similar applications under the same approval number.
, ] m3 q4 b, O4 z' W+ j> Therefore, we would like to be able to configure the units to a specific
+ @! _! N( x$ i+ K8 Z* [% ^. k> application. For the business that we do, this approach will yield more
$ [3 I8 e1 P1 d% q > sales based on the same product and approval. We are interested in the
. F( z0 E, F) D, j2 } A> following specifications:
0 q- {2 e% x7 k+ n# U# z7 ]6 N>
) B( }4 Z( M1 a1 r- f" J. q> - 2 inputs at the Transmitter with three possibilities;
, Q* w" `3 U9 G > 2 analog
8 T: E5 K) e5 q& G* m> 2 digital
u' l- q. l0 {5 Y > 1 analog and 1 digital
% t9 K! h( u! n" f: }>
1 p, |' ]3 o6 O3 c# Z0 P$ s> - 2 outputs at the Receiver with three possibilities to match inputs
& U: f' X& |# |3 O >
$ e o( O7 ]+ e5 x6 g6 ]> - Ability to configure/define analog Transmitter input ranges through
* T: R$ W. b6 U' H+ P1 }! d > simple programming method to correspond with full-range analog Receiver
0 [9 h3 G J6 F2 } > outputs (0 - full voltage).
4 E, g2 z$ b4 Q7 H6 Y >
$ V: T: }, s( p, x, j* o9 v+ t> - Ability to configure and set sample rates for the inputs.
4 J+ {/ \, A) s( O% O! D! O >
4 {! I- E2 N& X0 h1 L7 s > - Digital output on Transmitter that turns on during the sampling period.
d. r! u$ U( [/ D ^2 ? >
& l2 k/ K; q3 _- `9 p> - Ability to configure a power saving Sleep Mode in the Transmitter by
1 l3 `7 ]3 I+ e% v% t6 r$ f% X> both software control and input hardware control.
0 k1 u- q& L: G/ L5 h( m8 g>
* A: v+ y; m) S% _% E> In order to configure the units, we would need a way to make the
W f! W8 s8 R/ ]> settings. This would preferably be from a computer terminal so that
+ e6 c3 t, \9 m4 n- | > configurations can be saved or easily duplicated for production volumes.
! D5 W5 \; f3 V> The units should be small and compact with shielding, and able to mount
8 _( Z ~1 Q+ D: H7 w! D% m > to a printed circuit board with header connector.
0 f# I( V2 @7 A3 x, B, u6 l >
( n1 P3 H- B0 Z3 V. {, Q& ^> At this time, we are interested in samples of a pair of modems that
% `" H5 f* Y1 u% C( A8 o > might be similar to this proposed system. We do not expect that you
6 x4 d# N1 s# N$ G6 G > provide all of these specifications at this time. I can describe our
$ v( H* L! O4 E8 ~$ v7 s$ {> immediate application needs in the next email if this project is of
/ `2 g' V/ g8 O2 [( y, H$ c> interest to you. Perhaps you can make the samples by those
$ i2 r& z, H: V. h3 Y9 Y+ R > specifications. This will allow us to test your radios before we move
% O5 W1 @( X2 F) u) S/ o0 O > forward. We are interested in your 900MHz radio to start.
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