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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 J9 y/ e0 o8 M, v5 N客户要求如下,如果哪家工厂可以做,请和我联系
# D, K- h- L( j3 C: _$ Q9 P( C1 H > The application that we have in mind is similar to others that we commonly
" N b" \, c5 d# a- A. k > have. If we were to pay for FCC approval, we would want to use the modem
& R& r0 K; @3 n5 e6 R# J: N1 B > units in all similar applications under the same approval number.
; D! m5 W" e- s5 G' q P> Therefore, we would like to be able to configure the units to a specific
% V& T+ i/ E/ W0 z/ X: ?> application. For the business that we do, this approach will yield more
+ C# p, R) Q% T( d7 S1 p > sales based on the same product and approval. We are interested in the
8 D. c3 j4 L3 @$ a8 S! C > following specifications:
9 D8 I: y, q8 T >
1 H& _" H7 J" z3 K* ?! ]> - 2 inputs at the Transmitter with three possibilities;
B% d9 ?& b* i }* z5 s4 | > 2 analog
( u# t3 n8 H4 R4 X$ q> 2 digital
3 O6 V0 s. X: O> 1 analog and 1 digital
' L, G* P$ Q! w- w) }9 M/ E T% @ >
9 }% K+ m9 w& w2 y0 Z3 o" _> - 2 outputs at the Receiver with three possibilities to match inputs
9 z% C$ E& D6 G! {4 Z. P+ z; P3 t& v >
2 R7 d; T# L% E3 P3 [, r> - Ability to configure/define analog Transmitter input ranges through
H# m+ U/ f9 W# F" {6 r/ T* n6 x+ r > simple programming method to correspond with full-range analog Receiver
0 _( g* m5 z- E( r) R! \0 N > outputs (0 - full voltage).
" L5 P8 x( s7 H- y, S" u n1 ]>
/ G: y2 Z) e: Y$ B" M> - Ability to configure and set sample rates for the inputs.
0 e! p" }0 Y; O. Y9 w& E6 U( K5 t: F >
3 j7 h. |8 C/ k% h$ e> - Digital output on Transmitter that turns on during the sampling period.
6 T- y* u' Q3 v4 \/ |2 U% p' {8 K: A >
( O4 Q+ s- ?: j. Z$ E k. Y > - Ability to configure a power saving Sleep Mode in the Transmitter by
$ H7 V' j; z, o' K; K. X5 e> both software control and input hardware control.
7 p- C- Q1 \6 t >
+ v& C) `2 m. _> In order to configure the units, we would need a way to make the
% ?- ?# j- H; m9 f; j> settings. This would preferably be from a computer terminal so that
, }, h+ B$ a) }5 E0 @, d* A > configurations can be saved or easily duplicated for production volumes.
# e A1 D% p" V> The units should be small and compact with shielding, and able to mount
* N8 P' H) u6 d. R> to a printed circuit board with header connector.
' v+ ]; {! ]2 u; n5 Z( | >
2 l4 B: r' H( a+ K> At this time, we are interested in samples of a pair of modems that
7 E2 B4 O% d: o& a- O> might be similar to this proposed system. We do not expect that you
. s0 M, l& Y1 @) Y$ v> provide all of these specifications at this time. I can describe our
, F6 y( W& ~" w" I5 V g' B$ R> immediate application needs in the next email if this project is of
3 ^- U% {- q5 f; C! b0 L> interest to you. Perhaps you can make the samples by those
1 M( B& w' h5 K4 F- C8 z3 w> specifications. This will allow us to test your radios before we move
* ?8 T/ Z9 O, ^2 g( q( ^& F> forward. We are interested in your 900MHz radio to start.
: b* m8 N4 b& u: b7 |9 p0 p
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