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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

# j5 H% i- I3 v u7 Z5 N 客户要求如下,如果哪家工厂可以做,请和我联系
$ e& X; R/ y z. B> The application that we have in mind is similar to others that we commonly
2 L' Q5 ]( J i> have. If we were to pay for FCC approval, we would want to use the modem
9 R* T/ p# s5 N > units in all similar applications under the same approval number.
+ H+ u9 a0 a3 b; H6 ^/ t > Therefore, we would like to be able to configure the units to a specific
* `( D# |; i8 _> application. For the business that we do, this approach will yield more
+ `, R, M* u Z# s; A" ?* _ > sales based on the same product and approval. We are interested in the
: e5 i: `& D0 \. N8 J > following specifications:
# P4 [5 n2 ]( g; R7 m. n>
# `, O7 u9 I$ x& z5 W/ y) g9 c > - 2 inputs at the Transmitter with three possibilities;
# _$ |0 m9 q9 f7 I > 2 analog
. ?, t ~' `9 r; G: F# |: {* u> 2 digital
) B0 N/ b. w* E3 n> 1 analog and 1 digital
/ O r, D, u, t# L7 ]' w >
& I. A. r6 _' j$ u> - 2 outputs at the Receiver with three possibilities to match inputs
1 F9 i3 D9 ]7 G% X! O$ ~" P >
5 @8 Y8 i+ X0 W. G2 i6 R | > - Ability to configure/define analog Transmitter input ranges through
' C: O6 x! K: N5 r: |% C. y > simple programming method to correspond with full-range analog Receiver
! a6 \5 T7 i6 {% _2 y* ] _> outputs (0 - full voltage).
) Q# ^; P+ x( u% |6 r$ @+ ]>
' u) y6 j" x k' ^4 k% ?. c7 Y> - Ability to configure and set sample rates for the inputs.
8 E0 z7 s* L. }1 `0 z: v>
& Q: m1 x) y' H> - Digital output on Transmitter that turns on during the sampling period.
6 B! m1 X" @( G( z >
6 k) d, t2 L& Q8 X> - Ability to configure a power saving Sleep Mode in the Transmitter by
$ Y2 B; @$ L9 T8 a' O8 }" ?5 n > both software control and input hardware control.
: g$ J8 {0 U; X9 f >
6 a' n# V+ n# O P( ^ > In order to configure the units, we would need a way to make the
6 H( d2 I5 W+ k; h5 H: j: C > settings. This would preferably be from a computer terminal so that
& e8 J7 f- U' {: R+ M. e# q > configurations can be saved or easily duplicated for production volumes.
3 Y' d. A& p( n2 c7 \> The units should be small and compact with shielding, and able to mount
/ Y0 R% f! }' z > to a printed circuit board with header connector.
7 F2 q0 o( z, b l3 B>
/ z6 H- {* I5 m5 Y; b1 o: P+ P& j > At this time, we are interested in samples of a pair of modems that
, l9 k: b$ B2 R; G8 ?: i > might be similar to this proposed system. We do not expect that you
# r9 g6 Z% Y- O > provide all of these specifications at this time. I can describe our
0 P4 S2 w* N) s+ |. A" o" h> immediate application needs in the next email if this project is of
2 W$ B* ?% y8 q% f/ a G> interest to you. Perhaps you can make the samples by those
* B" [; D; c7 f" G$ B7 T, o+ p5 f+ ?> specifications. This will allow us to test your radios before we move
6 v1 a8 U- f! w" Z> forward. We are interested in your 900MHz radio to start.
$ o9 }- c* i: k# x
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