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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 w* H5 D- Q8 D: r客户要求如下,如果哪家工厂可以做,请和我联系
+ @1 k( ?# o e6 g0 \) }> The application that we have in mind is similar to others that we commonly
) L+ U6 @( {6 R; }> have. If we were to pay for FCC approval, we would want to use the modem
; s6 \; i0 w1 z a3 }% p7 a( ~ > units in all similar applications under the same approval number.
- u* P& y1 d4 S8 D! r% L* p > Therefore, we would like to be able to configure the units to a specific
( o. s1 j/ M' J> application. For the business that we do, this approach will yield more
- Z# r0 }4 y. N8 r- S4 m- z > sales based on the same product and approval. We are interested in the
- b/ M% y* z l5 @2 ` > following specifications:
) D+ n; g8 e$ C+ s >
: Z8 ]. j. A j5 O7 `! K* X > - 2 inputs at the Transmitter with three possibilities;
6 y7 D0 ?$ `6 D- i7 }; t > 2 analog
$ Z; m* a/ K/ Z0 _> 2 digital
& O# @) t% L. W- C > 1 analog and 1 digital
- h! x3 ?" P; @$ B1 O >
+ E! \$ l" X9 o, e. m2 K/ e$ c > - 2 outputs at the Receiver with three possibilities to match inputs
8 S0 d2 @& U, i. a" T8 I$ l B( N >
* }5 M/ a- d+ b > - Ability to configure/define analog Transmitter input ranges through
: j( P" y g# w" K$ f> simple programming method to correspond with full-range analog Receiver
@& u9 S# l; e& d& z6 P) W: q> outputs (0 - full voltage).
5 O' f* q) c% _ b* s1 b* |3 v. J>
3 o2 n) v# R, `/ _) [ > - Ability to configure and set sample rates for the inputs.
$ r" @' g2 E y3 `% ]>
) `2 s. d# R% k3 ~: W% d' u* Y > - Digital output on Transmitter that turns on during the sampling period.
' D5 G. X S% C) L3 l1 r>
% `- a( z- w y# o) ?( } > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 m$ y/ ]# U8 E0 j> both software control and input hardware control.
6 \/ A% Q; q4 e, t# V6 n" Q6 j# ^ >
0 \+ T6 j; P) w! ?/ X+ c > In order to configure the units, we would need a way to make the
+ R i% |# O) F. w2 ]. _+ q > settings. This would preferably be from a computer terminal so that
- k% d1 J3 b1 ~2 ]5 Z. h7 Q* |! Z> configurations can be saved or easily duplicated for production volumes.
& o {4 N e4 ?( } > The units should be small and compact with shielding, and able to mount
/ Q, M8 s5 p3 @0 ?9 z, {6 Q > to a printed circuit board with header connector.
) ]& I: s4 ^' X! p>
; z5 h! a o2 ^4 s- d% I> At this time, we are interested in samples of a pair of modems that
5 b+ Q8 S w$ E4 s- ~1 I> might be similar to this proposed system. We do not expect that you
0 ]8 k7 ~9 _ H/ o* N > provide all of these specifications at this time. I can describe our
6 I6 u" \4 ?: X# s: B+ k& V > immediate application needs in the next email if this project is of
- k& L0 N- I. y6 \> interest to you. Perhaps you can make the samples by those
! r& G5 S7 x) a > specifications. This will allow us to test your radios before we move
+ g+ R9 n1 N+ }3 _( e1 b2 f1 V. ~ > forward. We are interested in your 900MHz radio to start.
$ u3 B4 X/ f& S: ?6 j' \
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