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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

# l. ^5 A: E. {7 \ 客户要求如下,如果哪家工厂可以做,请和我联系
& H* i( T; D3 i% E/ y5 s/ S* F! O > The application that we have in mind is similar to others that we commonly
0 m7 J7 x0 }6 C/ @2 y; m* [5 v+ S) `> have. If we were to pay for FCC approval, we would want to use the modem
9 X. U$ d6 Z7 l6 N# I> units in all similar applications under the same approval number.
6 Y- N# e w$ n& C> Therefore, we would like to be able to configure the units to a specific
$ t9 n6 g5 u+ P7 f3 Y$ J m- L > application. For the business that we do, this approach will yield more
& K% i) k0 K2 Y+ ^> sales based on the same product and approval. We are interested in the
6 C3 f4 ~9 C, o+ f/ V > following specifications:
2 W' |( k& @0 S- Z>
7 p* }& Q" D+ t' f1 h6 x > - 2 inputs at the Transmitter with three possibilities;
0 g5 k6 ~ D# E/ G > 2 analog
$ d( u. j7 a/ ]> 2 digital
4 a/ \" r' f% s8 N > 1 analog and 1 digital
7 f% j6 W3 S- r, ]6 a>
9 O2 R" v+ z' s3 h/ U> - 2 outputs at the Receiver with three possibilities to match inputs
& Q8 T- n4 q$ b; j: w8 s >
8 E& s( t) p" ?0 _. m7 t1 s > - Ability to configure/define analog Transmitter input ranges through
" Q3 H3 }/ s0 q8 m! ]> simple programming method to correspond with full-range analog Receiver
7 m ^$ v; R: J0 k > outputs (0 - full voltage).
' i8 ^. [+ d# q; M: i' i>
# G% d/ ~# X' i > - Ability to configure and set sample rates for the inputs.
5 E% G$ |* S. r9 M) S >
' \+ z$ _9 h. x2 R, Y w. M> - Digital output on Transmitter that turns on during the sampling period.
+ o0 v( n/ Z% R8 n! `* S& e>
/ h; |9 z& Y, r3 p0 @3 i2 M > - Ability to configure a power saving Sleep Mode in the Transmitter by
5 `5 i0 f* x' z g) ? E> both software control and input hardware control.
$ ]! G; H- t4 \, \: j5 Y' ^/ q>
# J9 H; q" {9 ] > In order to configure the units, we would need a way to make the
0 M J' i8 F! C+ B, P1 A8 h> settings. This would preferably be from a computer terminal so that
1 G. o$ J* N) q8 a( I; U> configurations can be saved or easily duplicated for production volumes.
$ y d% S5 Y% J0 q3 Z > The units should be small and compact with shielding, and able to mount
9 O3 k% A% |, [7 A > to a printed circuit board with header connector.
5 z; p/ l% e1 d! Z5 S' h; l; W7 n>
) [/ E5 [6 G" |; L> At this time, we are interested in samples of a pair of modems that
0 z/ y5 b% S g$ ~4 `> might be similar to this proposed system. We do not expect that you
; E# t' B1 U6 Y( I: [ > provide all of these specifications at this time. I can describe our
, |% P y6 G3 w# }> immediate application needs in the next email if this project is of
8 ~0 d; @2 k' P1 i' H+ Q$ \> interest to you. Perhaps you can make the samples by those
, X" Y2 o& }& b > specifications. This will allow us to test your radios before we move
, S. k, \0 d7 H; z- y > forward. We are interested in your 900MHz radio to start.
3 D3 K$ t# Z" Z4 k+ k
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