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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

7 [- i g& p2 O- J/ O, O 客户要求如下,如果哪家工厂可以做,请和我联系
. f% j/ A* g) E# y r9 g> The application that we have in mind is similar to others that we commonly
- m$ M" R% I- h/ J > have. If we were to pay for FCC approval, we would want to use the modem
0 `" x5 S" b7 ^" D+ N, I A% H4 @> units in all similar applications under the same approval number.
: x0 C8 `& w1 }% g* {> Therefore, we would like to be able to configure the units to a specific
; e! F* k9 d4 U% B> application. For the business that we do, this approach will yield more
8 [9 s* s' ~/ ?$ p- {) _ > sales based on the same product and approval. We are interested in the
; O4 X4 M) x# P) k0 ?: e > following specifications:
+ g# n- N( V6 c3 T >
; H8 ~6 w& h' \' y y > - 2 inputs at the Transmitter with three possibilities;
! C! ~, K( [- S. n `5 ~8 E+ z> 2 analog
8 h+ U( W) h% w+ m > 2 digital
0 w( q2 p4 d+ t' K& C3 X0 H > 1 analog and 1 digital
+ `0 D4 l) m" J C2 [) e2 F>
4 l& o, p. A+ c9 L6 j > - 2 outputs at the Receiver with three possibilities to match inputs
, ~8 B/ t0 B5 Z `/ y4 s" m! Q>
2 x' W+ ^- U# n) A% ]9 Z> - Ability to configure/define analog Transmitter input ranges through
! h( X7 l) x2 {4 k- H: O- H7 u > simple programming method to correspond with full-range analog Receiver
9 m: e& q8 N/ N# s$ b# ]% E > outputs (0 - full voltage).
* R7 k6 j+ h5 `* e1 o% _* z >
6 Z$ I& e6 M7 I- p. s! l> - Ability to configure and set sample rates for the inputs.
+ N; _% w# i6 i; h' A >
W4 ]/ W5 _1 u' A, t> - Digital output on Transmitter that turns on during the sampling period.
* F' n8 A2 E8 P& B9 F/ ]1 r >
; l& G) J( A6 E/ _( W1 A > - Ability to configure a power saving Sleep Mode in the Transmitter by
. W( s( Y9 p% q& d > both software control and input hardware control.
# Z' c3 v: J3 p. t9 P>
; w) O2 n; P' l, x% m3 X> In order to configure the units, we would need a way to make the
, {" H% i$ t$ i- D5 g E> settings. This would preferably be from a computer terminal so that
% V+ {0 Y' r; D- P2 l& [> configurations can be saved or easily duplicated for production volumes.
+ ^4 {7 G9 ~( q> The units should be small and compact with shielding, and able to mount
( q3 ^$ l0 P! B! X > to a printed circuit board with header connector.
" J2 }* v; e* @ p) N. d>
, T: L, T! p. U0 I2 K5 z( I' Q> At this time, we are interested in samples of a pair of modems that
8 ?& d: w+ [ S9 a) [> might be similar to this proposed system. We do not expect that you
! p' W9 ?+ D1 U9 i0 ~# [; m> provide all of these specifications at this time. I can describe our
1 H2 c5 m1 `. y) D > immediate application needs in the next email if this project is of
7 |# r5 P9 r! ]# L0 \) V2 W9 X( T$ L> interest to you. Perhaps you can make the samples by those
. ^. g* g0 W! g/ m: n! j> specifications. This will allow us to test your radios before we move
* }+ A+ s. h; c* ?& u% ]* Z3 |2 s$ B> forward. We are interested in your 900MHz radio to start.
+ U+ R% _& u& o$ M
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