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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

' a3 r/ }2 `( B# ]' w( @+ ]4 V客户要求如下,如果哪家工厂可以做,请和我联系
4 z- u7 O" @- z > The application that we have in mind is similar to others that we commonly
! n# q# }& w+ S N2 \0 Q' [ f" o > have. If we were to pay for FCC approval, we would want to use the modem
& t$ }0 {5 h* U! m7 K. c0 ]- e> units in all similar applications under the same approval number.
9 l* n5 e7 P% _6 Q" w* G > Therefore, we would like to be able to configure the units to a specific
8 c( D Q3 f5 \2 {> application. For the business that we do, this approach will yield more
# y" m5 G N8 o6 A! u& Z/ q K% P > sales based on the same product and approval. We are interested in the
6 Z& h, x1 U2 Z' T X > following specifications:
" D8 P4 K7 G* M' l% L>
4 l2 ? @ I9 R0 K8 y* ^- q6 ?> - 2 inputs at the Transmitter with three possibilities;
6 `: Y. G! {% J; v' ^0 o/ Y> 2 analog
3 m. U$ r0 B* O+ V, f7 ]5 L) ]& [> 2 digital
" x. n' j0 z$ B' w: R+ e0 l > 1 analog and 1 digital
" s8 P) w' B. _& F: `# Y x& k7 Z$ Y; N >
, [' m$ t2 m3 a0 ?0 a3 R' h2 O7 W> - 2 outputs at the Receiver with three possibilities to match inputs
4 S. ~0 o3 z( s0 T" i3 R >
z( X' S1 ]+ w- M, Q> - Ability to configure/define analog Transmitter input ranges through
! I+ D& C4 Q7 R4 W$ u0 U > simple programming method to correspond with full-range analog Receiver
' R1 @3 X$ F, `3 y. z. } > outputs (0 - full voltage).
5 D- C1 a8 X/ |. U) {( @( z6 E >
! o3 o9 o+ e- c2 F5 m9 C9 D' L> - Ability to configure and set sample rates for the inputs.
% k6 t9 O6 P9 C5 E8 G% z& }, C>
* I2 f- @4 A) M$ Z4 c > - Digital output on Transmitter that turns on during the sampling period.
8 @( i3 \4 |! m: m$ w7 L1 | [* Q>
8 p) j) W1 T. p" x9 T* [ > - Ability to configure a power saving Sleep Mode in the Transmitter by
) O& A1 a- B; z2 h9 N* \ > both software control and input hardware control.
1 Y9 x; I: k+ H/ q$ W+ ^ >
, x4 m4 { `! P" K i) s> In order to configure the units, we would need a way to make the
7 d# H- {, ~( Y( U3 ~8 t> settings. This would preferably be from a computer terminal so that
y7 j7 c, J: P7 W3 n5 c> configurations can be saved or easily duplicated for production volumes.
7 a1 p6 z' z; N J1 T0 ^ > The units should be small and compact with shielding, and able to mount
, _1 J% G) b5 x3 c> to a printed circuit board with header connector.
5 Q& _+ l3 U+ e' F+ g* y1 _; B>
- i: T2 Z) S; n > At this time, we are interested in samples of a pair of modems that
" `2 X3 n8 _- Y( z4 j9 y) j: J" h > might be similar to this proposed system. We do not expect that you
& e3 ^3 Y0 H" w$ E6 P7 N> provide all of these specifications at this time. I can describe our
8 v: W* [' `* O' E > immediate application needs in the next email if this project is of
5 k: I( N- h. @; X! \> interest to you. Perhaps you can make the samples by those
8 n# i$ b5 }1 P" u> specifications. This will allow us to test your radios before we move
* W! e; E% g1 X > forward. We are interested in your 900MHz radio to start.
5 C% }# I' O( w: l4 Y+ e. S- I9 l* X
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