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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

$ n) i, W, [; b 客户要求如下,如果哪家工厂可以做,请和我联系
6 h% i" \1 f) f$ g% y> The application that we have in mind is similar to others that we commonly
: ]7 t, c+ f3 @: { > have. If we were to pay for FCC approval, we would want to use the modem
# Y2 |2 a( V, A; P$ F> units in all similar applications under the same approval number.
0 q0 @: @; b: t> Therefore, we would like to be able to configure the units to a specific
9 r( ]/ \' X9 v$ b* y* B8 u > application. For the business that we do, this approach will yield more
0 V6 I) B$ B' i |: Q > sales based on the same product and approval. We are interested in the
1 Y) ^( A! L. k2 ?( r9 d9 R: K > following specifications:
! V6 K' e, p- ^& O >
- x! \- l, o2 y5 ]$ ~" f; |> - 2 inputs at the Transmitter with three possibilities;
' Z# ~& e( H; R* g> 2 analog
, ^" J$ q; m# |; |" ^4 U d > 2 digital
4 f0 T' u3 p0 j- H > 1 analog and 1 digital
; i7 U5 F$ }4 `. u; l# \: Y) B# o/ ~( o >
0 ~$ Z6 p: f) n+ @ > - 2 outputs at the Receiver with three possibilities to match inputs
, Q* t! }( Y1 m8 a. Z7 q$ j >
# y! n% Z% e( M: p2 y1 s+ ~/ X > - Ability to configure/define analog Transmitter input ranges through
- n1 d1 |+ r7 w) g1 j> simple programming method to correspond with full-range analog Receiver
7 }1 \, j8 ?8 k* n: ^> outputs (0 - full voltage).
# p8 ?/ G1 r! i2 t& }& H/ _>
w3 h3 j! R7 w; w+ c; y5 F) S9 @7 L> - Ability to configure and set sample rates for the inputs.
9 `+ ?# ]) h. P+ n* y! H>
4 W, m5 @8 `7 Y& [> - Digital output on Transmitter that turns on during the sampling period.
; E* ]7 O" }2 g" F" J >
4 J9 C2 T2 u, ]3 f. ]> - Ability to configure a power saving Sleep Mode in the Transmitter by
3 I S5 P8 H) a4 Q> both software control and input hardware control.
4 ^ [' r0 z) @, C% R>
1 Y/ H# i. ?. @# N& Z8 {! v > In order to configure the units, we would need a way to make the
" c6 ~9 l9 l1 Q > settings. This would preferably be from a computer terminal so that
* {0 K7 v' H* }. j, r& s > configurations can be saved or easily duplicated for production volumes.
1 j* i" L% U6 M5 g6 o > The units should be small and compact with shielding, and able to mount
0 w: o! y$ c9 H" z! C* n4 R7 y8 q# X> to a printed circuit board with header connector.
5 b8 U1 r! R3 H* K: _>
! |$ c* ` Z9 [( a4 g > At this time, we are interested in samples of a pair of modems that
4 I( H, K Y! @6 T4 g) \% b- o/ P# {> might be similar to this proposed system. We do not expect that you
9 E9 o" n; @1 j1 ]> provide all of these specifications at this time. I can describe our
% c2 X4 q. U/ K! e7 ?; T > immediate application needs in the next email if this project is of
$ W2 \2 V: Y' Y6 B# `! ~3 V: E> interest to you. Perhaps you can make the samples by those
! O/ A, v- f) W# N6 X# M" r> specifications. This will allow us to test your radios before we move
$ k+ ]! {- y, t2 z> forward. We are interested in your 900MHz radio to start.
" _- B0 g' `$ g9 k- G# l: j
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