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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 R, k( W( l- k& N4 L 客户要求如下,如果哪家工厂可以做,请和我联系
. x3 J" X u) A& ^6 d" D> The application that we have in mind is similar to others that we commonly
7 x7 m& A- t" p7 F$ B> have. If we were to pay for FCC approval, we would want to use the modem
' X6 E# U: \3 m3 V1 m > units in all similar applications under the same approval number.
5 p4 v% r K- Y9 @/ H> Therefore, we would like to be able to configure the units to a specific
. \$ i" B1 @) H7 J > application. For the business that we do, this approach will yield more
: q- C" W- j3 H# r. R> sales based on the same product and approval. We are interested in the
: c% a4 Y7 y1 Q; o7 F$ l9 G > following specifications:
6 ]! H/ g/ A5 W: C/ `0 ?! x) {1 t>
% o' V5 p, }7 I- m( ]2 o# v+ M; e > - 2 inputs at the Transmitter with three possibilities;
* g* M5 ^9 x9 a; v& l; A> 2 analog
, u$ m2 A0 n9 f* F8 j0 Q9 w/ F > 2 digital
$ f: O/ P+ t* a' @( Y+ M& C6 _> 1 analog and 1 digital
9 Z+ P& @1 ]4 P$ |. M' W >
7 M& O& t5 M" v. b X$ ` > - 2 outputs at the Receiver with three possibilities to match inputs
: k3 q& `7 I- D9 E) N>
# f: B5 Q! [1 i( J; z. I* }> - Ability to configure/define analog Transmitter input ranges through
7 e, U9 l) F! y0 U3 p. S# m9 X( } \7 c > simple programming method to correspond with full-range analog Receiver
3 l+ M! f8 B* p3 b+ x > outputs (0 - full voltage).
6 h2 q5 G- u8 W) B) i4 v >
7 B) q, ]6 I! {) p2 X> - Ability to configure and set sample rates for the inputs.
9 ?( M/ F: ~2 g" B$ h>
2 w/ W) K4 W; @7 Z. ~( P > - Digital output on Transmitter that turns on during the sampling period.
5 S4 d2 Z0 n& [3 n7 p: B2 |. @: C>
- q9 }6 t% n& K> - Ability to configure a power saving Sleep Mode in the Transmitter by
/ [/ r& u8 w" [> both software control and input hardware control.
* ]( t2 H" c' d' Z- o# d, ~>
% n- G, e: S. M" c! x/ {! e" G G> In order to configure the units, we would need a way to make the
5 B) D4 S4 k9 Y5 G5 m0 D > settings. This would preferably be from a computer terminal so that
1 U; J4 J4 C! [' y6 j, b > configurations can be saved or easily duplicated for production volumes.
( T" z8 }3 o6 X, \* e+ a; f% g > The units should be small and compact with shielding, and able to mount
t! O# J* m$ L0 j> to a printed circuit board with header connector.
( a7 X; j$ g' t8 k5 R, ^>
2 t' h. k- F U# d2 P% n> At this time, we are interested in samples of a pair of modems that
( b, G6 q8 E& D$ x> might be similar to this proposed system. We do not expect that you
3 o. L+ F* K: b( z) }2 [ > provide all of these specifications at this time. I can describe our
- e" u- N! l9 J( I8 I" T > immediate application needs in the next email if this project is of
% A- r8 s9 W8 j+ p8 M > interest to you. Perhaps you can make the samples by those
3 a$ G! {6 A1 h! _/ b( M# d > specifications. This will allow us to test your radios before we move
) s3 r3 x% j+ d6 x7 l+ m> forward. We are interested in your 900MHz radio to start.
3 w0 l2 @% l* A3 K' u
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