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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

, m& @8 C. |0 u! }' J* n8 F# E 客户要求如下,如果哪家工厂可以做,请和我联系
/ n, ?) V+ d$ `2 T l8 g( x4 v > The application that we have in mind is similar to others that we commonly
3 P4 o" l; m* G+ H5 m5 O> have. If we were to pay for FCC approval, we would want to use the modem
3 D4 [1 B" e1 s > units in all similar applications under the same approval number.
8 b9 H7 K" g5 v) _1 P9 ^, U3 n6 c7 c> Therefore, we would like to be able to configure the units to a specific
& E: z5 m3 X e+ b ? > application. For the business that we do, this approach will yield more
2 a# p* x$ d. A) p$ m > sales based on the same product and approval. We are interested in the
2 r3 L/ x7 \8 @* A6 T; B% r> following specifications:
/ L3 y" I, l! R( m >
7 R* H$ ]$ d) ~: U > - 2 inputs at the Transmitter with three possibilities;
G: c2 A5 X P1 R" o7 N/ e* u> 2 analog
7 i6 Y/ P9 y+ J8 M4 X! F> 2 digital
0 M8 h, n6 q- O8 e9 ?> 1 analog and 1 digital
% ], ]% o5 j3 I* t7 z>
I8 d4 U& p* N' t: {! o C7 S > - 2 outputs at the Receiver with three possibilities to match inputs
& x Z( C, B# D0 o >
, R6 W9 a1 q0 ] > - Ability to configure/define analog Transmitter input ranges through
5 j! u) n1 k& b> simple programming method to correspond with full-range analog Receiver
) N" R v- ?3 S' ^& M. U \ > outputs (0 - full voltage).
n6 x9 s: N2 Z; e >
( Q9 X* w5 N p> - Ability to configure and set sample rates for the inputs.
+ W U$ I( P8 ? ]. w/ L# F/ L >
2 i" ]3 P% a+ g2 t7 ]* F > - Digital output on Transmitter that turns on during the sampling period.
8 h. G6 Q6 [7 E >
8 M1 C# j. ^/ `; r) f> - Ability to configure a power saving Sleep Mode in the Transmitter by
) j+ O# I- Z! Q> both software control and input hardware control.
2 p: N; O; [% }% |& G; r+ d" D>
; y& i1 d/ x+ i, i5 i# ~& j > In order to configure the units, we would need a way to make the
+ b% Q [3 s% @$ i! u" s: u> settings. This would preferably be from a computer terminal so that
1 B4 u# y# d a. N- U2 Y2 Q > configurations can be saved or easily duplicated for production volumes.
5 ?( H# Z/ m2 L& W9 p7 Q > The units should be small and compact with shielding, and able to mount
; r q# b7 g0 \2 ?$ \ > to a printed circuit board with header connector.
7 W& e0 F0 M5 I/ Y* ?9 z >
$ l, i( q1 K. z5 T. B$ v1 |* B> At this time, we are interested in samples of a pair of modems that
$ e# N# J& W* j. E; f5 [ > might be similar to this proposed system. We do not expect that you
! d8 a; J- D$ Q# P; Z- O> provide all of these specifications at this time. I can describe our
9 c; _+ C1 ?" m! Z6 q9 _. A# f3 f> immediate application needs in the next email if this project is of
% Z5 \6 H( C, p- m6 _> interest to you. Perhaps you can make the samples by those
5 Y$ t8 o5 E' n0 j- I# g4 c+ [ > specifications. This will allow us to test your radios before we move
: K% ] e/ E+ i5 ]: M> forward. We are interested in your 900MHz radio to start.
1 U5 @0 G4 r, A
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