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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

! h6 A, _2 e+ A/ v- p! D 客户要求如下,如果哪家工厂可以做,请和我联系
& l. ^3 h7 `" o) O > The application that we have in mind is similar to others that we commonly
; A# M& g4 E3 k2 C+ O: I; Y > have. If we were to pay for FCC approval, we would want to use the modem
" N- Q: l- ?4 A5 N: m+ a% H> units in all similar applications under the same approval number.
7 A. {$ m `: a2 |. |) D> Therefore, we would like to be able to configure the units to a specific
1 F' ^" {7 i, J/ J8 ~4 n > application. For the business that we do, this approach will yield more
+ W& `, u5 }! M2 ~7 e( B4 U8 ~& P > sales based on the same product and approval. We are interested in the
4 F& k" l, ]" X6 t( n' d/ D > following specifications:
" e4 S8 l; e* ~. w: ~5 _ >
" X7 p$ y6 w/ h2 g d% d( L E q$ D > - 2 inputs at the Transmitter with three possibilities;
! R9 C( j0 y: q6 Y3 K > 2 analog
' Z* q4 i- z$ h: X: w5 T > 2 digital
: X( f- g# { a, ?( p3 G> 1 analog and 1 digital
9 R4 K' H9 b+ L+ @>
+ v/ J+ g* @7 \! _5 J > - 2 outputs at the Receiver with three possibilities to match inputs
4 }( S3 @0 b+ i' W >
5 y) ~. K6 |6 E- p9 q > - Ability to configure/define analog Transmitter input ranges through
. @0 s C/ h- H5 n" i6 W- m> simple programming method to correspond with full-range analog Receiver
" y0 N, \; O( Q0 f4 \2 [ > outputs (0 - full voltage).
/ }1 l# q/ X* D; {>
y2 g% y" k& R) v B> - Ability to configure and set sample rates for the inputs.
! W, k% @, |* X! u$ m! U >
; ~ e2 I3 r- ?) o. O> - Digital output on Transmitter that turns on during the sampling period.
, `0 r* ]$ C: h k4 D8 D2 u5 z6 c>
& _8 \5 B1 a G3 J# p# k# t. l3 e > - Ability to configure a power saving Sleep Mode in the Transmitter by
% d4 G: h; ^- o; W( H r$ d > both software control and input hardware control.
y; x# x( y- s& q>
: R. f' B& ?5 U/ w3 U# `2 T, e > In order to configure the units, we would need a way to make the
' \) Y- Y9 k. `8 S" J- ~% o0 ]; S> settings. This would preferably be from a computer terminal so that
$ Y* Y! E2 o3 T2 r3 D+ G- l4 F> configurations can be saved or easily duplicated for production volumes.
! K& x0 E, w' s+ m% l > The units should be small and compact with shielding, and able to mount
, P- ~: h! r. R> to a printed circuit board with header connector.
- [# A; X) L- j" S6 i t >
* Y7 M5 R- D- }1 K) _5 ? > At this time, we are interested in samples of a pair of modems that
) |9 U3 M4 m8 A7 o% _# u! v > might be similar to this proposed system. We do not expect that you
. c- b8 r6 l) }4 ^ > provide all of these specifications at this time. I can describe our
/ E t: F1 G1 D; Q# @> immediate application needs in the next email if this project is of
0 m# p9 Q( h) \2 @: A% K7 M9 k0 b> interest to you. Perhaps you can make the samples by those
! B* ` x/ I1 I7 T2 z& b > specifications. This will allow us to test your radios before we move
- ^* a% S/ u3 | P> forward. We are interested in your 900MHz radio to start.
; E- ^3 I2 \: f+ n) y
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