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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

$ p2 i& u* ^6 \. f2 u客户要求如下,如果哪家工厂可以做,请和我联系
) x/ f k% d5 ]$ R5 F > The application that we have in mind is similar to others that we commonly
5 k& r7 m0 i, @( [$ P> have. If we were to pay for FCC approval, we would want to use the modem
! H' z% q" K# `% R" x+ s. O6 @! f> units in all similar applications under the same approval number.
1 K5 f# {- z% o0 r5 Z- { > Therefore, we would like to be able to configure the units to a specific
( k, B- p0 X s' ?> application. For the business that we do, this approach will yield more
4 Q$ k. g# w1 i. f( @ e0 F> sales based on the same product and approval. We are interested in the
/ v9 R' s/ B8 f> following specifications:
+ H9 h4 C4 I$ O# `: Q >
$ @0 n, u( `& z1 E> - 2 inputs at the Transmitter with three possibilities;
! B5 a( ?, ^' B1 |> 2 analog
3 l8 |) a8 x' e3 l> 2 digital
5 g( P" g2 K) ]> 1 analog and 1 digital
5 D4 f. a* j0 @. C# Q >
+ G' r" z# ]* U: p4 I; l> - 2 outputs at the Receiver with three possibilities to match inputs
" w3 Y: w0 R7 x9 g >
: K: d9 [3 P2 W > - Ability to configure/define analog Transmitter input ranges through
" c& k' k& M6 v > simple programming method to correspond with full-range analog Receiver
, L/ q( N g3 S6 p# P$ @: O! ?9 h > outputs (0 - full voltage).
]2 }& E7 y. z R- Q; ^2 s! J>
) \, B; _3 ?# H3 _, h( V$ k Y > - Ability to configure and set sample rates for the inputs.
; r9 v4 G# ]* C2 X$ A>
7 K! {+ s, M4 G# x( x > - Digital output on Transmitter that turns on during the sampling period.
# j9 R, ~ X8 s- o>
0 }! R5 n! y) r" o% U* d > - Ability to configure a power saving Sleep Mode in the Transmitter by
; m8 g" ^( g, G; p > both software control and input hardware control.
5 w# s1 g% G: a* Y' Y>
3 I2 G! w& ?! z6 ]! i9 s' n9 L > In order to configure the units, we would need a way to make the
8 h; G7 Y" @3 l; J+ K# K6 k> settings. This would preferably be from a computer terminal so that
9 a# y; U2 i7 K2 y% ?7 r> configurations can be saved or easily duplicated for production volumes.
, [ [! f7 t |: M7 P > The units should be small and compact with shielding, and able to mount
+ ^. @/ n4 B$ ?+ K. K, F > to a printed circuit board with header connector.
1 H. C% Q' T9 ^; Z" Q9 {" ]8 j' _& w >
8 h F1 U6 Y0 l) p T > At this time, we are interested in samples of a pair of modems that
1 _/ v5 R8 `; h! _4 x > might be similar to this proposed system. We do not expect that you
! i6 X4 { Z* B3 G5 B7 d1 k> provide all of these specifications at this time. I can describe our
- N7 G# N# k1 v! B$ t > immediate application needs in the next email if this project is of
, E& l) g; [2 i6 h: j$ x> interest to you. Perhaps you can make the samples by those
( T6 q! K* }6 X> specifications. This will allow us to test your radios before we move
; q1 E/ a: m: Y8 t> forward. We are interested in your 900MHz radio to start.
. v, M2 W% Y) Q ]+ F: e
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