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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

" E5 |- S. S. }, T 客户要求如下,如果哪家工厂可以做,请和我联系
+ x! n0 @* d! h, X% J4 f5 R > The application that we have in mind is similar to others that we commonly
/ h G$ p$ q8 J" r! m > have. If we were to pay for FCC approval, we would want to use the modem
2 E# s' C, i' b( F; t > units in all similar applications under the same approval number.
9 T+ v" H5 z1 ^. G+ G# p: S& z5 S > Therefore, we would like to be able to configure the units to a specific
- f- m3 l, `' r> application. For the business that we do, this approach will yield more
( o1 O& y3 B/ U8 U3 a/ b7 {- s> sales based on the same product and approval. We are interested in the
8 N" J, b# |1 |, Q# _> following specifications:
7 a% Y: A3 C0 o8 Z# @/ E. {) N >
u" o4 ]: q# L4 \$ v > - 2 inputs at the Transmitter with three possibilities;
- o0 e+ b, O. Q( L3 h> 2 analog
y _! d4 K! b0 M > 2 digital
4 {! k2 |( }4 x# ]4 \& M2 f > 1 analog and 1 digital
! f6 }2 \7 ~- H2 }8 F& K' g- r>
1 V; E: ]' ]) t& ~ > - 2 outputs at the Receiver with three possibilities to match inputs
* f1 ?7 \2 X+ T8 t6 {* c& ? >
& V3 j, e8 N9 H7 D8 ?/ j> - Ability to configure/define analog Transmitter input ranges through
- y$ R1 N6 k; F7 H6 Z9 C+ \4 n- g > simple programming method to correspond with full-range analog Receiver
. q8 V) z7 j8 v4 a/ N: v5 j> outputs (0 - full voltage).
$ B* P0 @+ V, b& [ >
, J/ L9 v! t& X; g# U> - Ability to configure and set sample rates for the inputs.
8 e$ `- t7 Y7 @9 K4 u4 }9 H6 r >
+ F! z$ ~* \: w: y > - Digital output on Transmitter that turns on during the sampling period.
, P- g% H1 _+ r5 [6 `% q9 `9 y >
# B- V8 C3 \. y% C/ k- |$ V+ Z > - Ability to configure a power saving Sleep Mode in the Transmitter by
! U, S2 I4 f: H. i3 |! W& b> both software control and input hardware control.
+ Q& j: o2 e. v! R/ u8 N, f: f>
+ u# q0 \; J* ?" v! Y7 n$ Q0 m( D > In order to configure the units, we would need a way to make the
5 A% k1 D/ y: q! V8 R> settings. This would preferably be from a computer terminal so that
' H% C0 t+ _. a" F > configurations can be saved or easily duplicated for production volumes.
8 F+ \" A/ H2 o! t > The units should be small and compact with shielding, and able to mount
$ p1 P+ A% }; J1 D5 s8 H > to a printed circuit board with header connector.
v; r1 R; E5 C>
& ?7 \3 G& U; z$ }) P# }4 l6 g3 g! V> At this time, we are interested in samples of a pair of modems that
" {+ [1 E* Z( l# b9 X; V > might be similar to this proposed system. We do not expect that you
7 W3 Q+ d C+ M6 R. @ > provide all of these specifications at this time. I can describe our
9 O' T& ~- n `9 w+ `0 P# c! H > immediate application needs in the next email if this project is of
2 C% g+ W# d- w2 x1 ] > interest to you. Perhaps you can make the samples by those
7 Q4 h& g2 K! m4 j) ? > specifications. This will allow us to test your radios before we move
# _9 N6 p7 y3 Z > forward. We are interested in your 900MHz radio to start.
$ q7 O$ y1 v& V
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