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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

" G3 @: f4 n( q" m; L6 v 客户要求如下,如果哪家工厂可以做,请和我联系
' T4 I% N% |9 U/ ]6 j0 m> The application that we have in mind is similar to others that we commonly
) s' I O4 N: }- g3 q( t> have. If we were to pay for FCC approval, we would want to use the modem
, W$ y+ F' e4 W$ c0 e! \> units in all similar applications under the same approval number.
$ S t& w! w3 e> Therefore, we would like to be able to configure the units to a specific
4 G2 J7 o% y7 J, N: R > application. For the business that we do, this approach will yield more
# R' U) \1 `/ s6 d > sales based on the same product and approval. We are interested in the
3 R& |* I& |; B5 F& u> following specifications:
* z, M' f1 I0 ` >
7 z$ q# H% _& Q% H) d > - 2 inputs at the Transmitter with three possibilities;
# Y; V# b- v; k* Q E> 2 analog
& }$ U" I. Y2 C# ^6 l/ E> 2 digital
# r& o5 V0 h' E% V > 1 analog and 1 digital
0 @: T& Y P0 H0 l9 a>
% \3 j) o- B- i0 ~3 F > - 2 outputs at the Receiver with three possibilities to match inputs
, q# V) o( S- G0 m) `& n >
[3 ]$ h$ a( b+ ~# f! @> - Ability to configure/define analog Transmitter input ranges through
; q- J% X! w) P9 } > simple programming method to correspond with full-range analog Receiver
# r4 |% P1 x+ F% x1 o > outputs (0 - full voltage).
_. c' m: P' O0 o7 Y >
4 y ? X+ F* p8 g> - Ability to configure and set sample rates for the inputs.
9 }$ |; W& V) Z. U >
; H- m& B; i& w1 z2 \! _ > - Digital output on Transmitter that turns on during the sampling period.
) L! W, D3 s" {$ k$ O. Z0 @4 m/ F G >
- D: a# c8 t- \: J7 g > - Ability to configure a power saving Sleep Mode in the Transmitter by
* _2 K, r! K' b5 D1 K& x1 h# L> both software control and input hardware control.
( E f+ w+ q3 n% x& f }>
, Z) y _9 R! p ^4 S> In order to configure the units, we would need a way to make the
2 R& Q+ B" Y* z( L5 Z$ J> settings. This would preferably be from a computer terminal so that
: q: a! K9 ^, s> configurations can be saved or easily duplicated for production volumes.
( K V% D+ ^8 |% @; a! g4 D+ \ > The units should be small and compact with shielding, and able to mount
9 W$ C4 a, J# c2 M' W > to a printed circuit board with header connector.
7 Y& P, A |: f; d. l >
+ H; o3 `) |$ ^9 X6 p > At this time, we are interested in samples of a pair of modems that
N. w" r* C7 B > might be similar to this proposed system. We do not expect that you
/ @3 t4 L! Z8 [' } > provide all of these specifications at this time. I can describe our
! l7 i1 n O6 X" k s* V4 V) ^4 u> immediate application needs in the next email if this project is of
/ t! q8 h( R0 v& h8 u; L > interest to you. Perhaps you can make the samples by those
" l3 W) H" i n W2 ^. | > specifications. This will allow us to test your radios before we move
: H3 c ~) f8 V4 e1 k > forward. We are interested in your 900MHz radio to start.
# i8 j1 @! d4 B6 `' @
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