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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

( ^/ Y$ |" H" M# w6 e3 M0 n0 s7 b h: x 客户要求如下,如果哪家工厂可以做,请和我联系
2 F1 L9 C: C$ i; Q > The application that we have in mind is similar to others that we commonly
) m9 x2 X& T" }- C> have. If we were to pay for FCC approval, we would want to use the modem
( T* y9 H3 ^0 J. b& m" b2 S% r > units in all similar applications under the same approval number.
4 |6 ?, \9 U c" Z# j8 d> Therefore, we would like to be able to configure the units to a specific
) A$ V0 W+ b, c7 w0 w( V > application. For the business that we do, this approach will yield more
8 V) y8 N$ A+ ]0 J > sales based on the same product and approval. We are interested in the
( V3 O7 V/ ~" Y: Y7 \ > following specifications:
- S/ \" T6 H+ d1 W& D' T/ F>
7 {: l! j& {& N > - 2 inputs at the Transmitter with three possibilities;
, u7 W* l/ u2 q2 J7 |7 J% O> 2 analog
$ u- ]# r/ v1 u > 2 digital
2 a$ a5 E/ v2 L4 i1 ?. N1 Q> 1 analog and 1 digital
6 Y# q# i) Q$ a2 k B9 R7 E3 d9 c' ? >
4 |- B; M5 ]. D( }8 r, F > - 2 outputs at the Receiver with three possibilities to match inputs
! r( M& M f7 n$ c4 r+ Q- F) n>
+ Z/ H' H# y* M" U6 B& o > - Ability to configure/define analog Transmitter input ranges through
+ @' a- H; T5 U! V# W, Q* C> simple programming method to correspond with full-range analog Receiver
& Y8 I7 f" S& L > outputs (0 - full voltage).
1 a8 M3 W8 e# L9 q+ k0 K/ z* K >
" V6 W) v C5 m- L6 J& W> - Ability to configure and set sample rates for the inputs.
. G2 ^8 X8 @, t, J>
# ~& |% E! u% {3 l5 ^/ d* U> - Digital output on Transmitter that turns on during the sampling period.
3 X7 E6 g# q5 Z>
3 o$ L0 S `8 ~) Z> - Ability to configure a power saving Sleep Mode in the Transmitter by
1 j& F/ I: }2 W! M- u5 W. `1 i" Y( d > both software control and input hardware control.
" [& {% w }% G; r) E>
# c* ]( D7 V4 {" D4 R4 b > In order to configure the units, we would need a way to make the
/ `- ]( @# D0 }: Q- J. k. [1 v > settings. This would preferably be from a computer terminal so that
' |2 w9 M! B6 B8 x2 c& V" g- A, R > configurations can be saved or easily duplicated for production volumes.
9 M1 A% q' ]4 o( y# C: J- e > The units should be small and compact with shielding, and able to mount
: @7 e5 z* C6 a( k > to a printed circuit board with header connector.
4 {- ]2 }5 a7 i7 `* G1 R>
4 y# A2 f; p+ N# O# E* H/ ~5 x > At this time, we are interested in samples of a pair of modems that
7 q, C' X! `6 `0 B3 ^ > might be similar to this proposed system. We do not expect that you
. D/ z# ^! o0 _0 F% w" M > provide all of these specifications at this time. I can describe our
, H# M. p6 S8 U) S$ P > immediate application needs in the next email if this project is of
8 }" L/ B% x6 ^( ~3 y' v% ^# G( T> interest to you. Perhaps you can make the samples by those
) m5 D3 P# f8 ]/ {' |$ l> specifications. This will allow us to test your radios before we move
f, f) w5 ~2 W: W' Q4 l$ Y/ k> forward. We are interested in your 900MHz radio to start.
6 b( m3 H9 |; @
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