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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

. ^* `5 T. W0 H" o) `" [% `客户要求如下,如果哪家工厂可以做,请和我联系
% r$ F, ~- [( A> The application that we have in mind is similar to others that we commonly
3 o; q7 v3 R. G/ T3 i4 {! A _> have. If we were to pay for FCC approval, we would want to use the modem
' A+ M6 ^# u( f# P! ` j$ l0 d > units in all similar applications under the same approval number.
4 U& I- I- }9 l8 ]( T( j > Therefore, we would like to be able to configure the units to a specific
- m' t3 u- K+ I; J( }& J > application. For the business that we do, this approach will yield more
& Y7 L- W" H- L- a l1 B> sales based on the same product and approval. We are interested in the
- s" o0 K4 n5 P2 L4 }, v> following specifications:
, G$ J8 C' j4 ^ >
0 U/ i& f) a; a, m0 F0 S> - 2 inputs at the Transmitter with three possibilities;
+ O3 l4 z/ {* T; f* o > 2 analog
% O q) n9 K& x > 2 digital
4 \, e4 I" A% Q+ H; I > 1 analog and 1 digital
! b G5 Q6 Z- ^1 m >
* e* A; e. b% `% F, a6 G> - 2 outputs at the Receiver with three possibilities to match inputs
9 Z! ?2 C9 i& ?! j >
" X% m4 v$ A3 B# O8 ]. A, _, h; s > - Ability to configure/define analog Transmitter input ranges through
0 W2 ^! A$ I9 r/ e2 w" y, c> simple programming method to correspond with full-range analog Receiver
; J/ b2 K9 s) o; m$ I) q& f, z2 S > outputs (0 - full voltage).
]( E4 i+ l, c* ^ >
" o' a$ L3 k; W) _& ]0 o9 h > - Ability to configure and set sample rates for the inputs.
' i2 p k- z2 c0 u, I8 }4 L, _* `>
7 Y5 X3 p, `, c/ c, ]! ]! \$ `> - Digital output on Transmitter that turns on during the sampling period.
) z& t' Y2 i* Z; q2 M5 } >
$ s8 N5 _6 Z: X5 w> - Ability to configure a power saving Sleep Mode in the Transmitter by
3 ^1 n3 n- g2 Y7 p5 C& f+ o: F > both software control and input hardware control.
3 n4 s+ h* ^* [0 c9 T* f>
4 c+ |1 w+ J3 \0 n> In order to configure the units, we would need a way to make the
1 |" R; u7 y' q# g) G3 B > settings. This would preferably be from a computer terminal so that
( W Q: O6 v. b3 J4 e > configurations can be saved or easily duplicated for production volumes.
- @0 L: h* P) j" P > The units should be small and compact with shielding, and able to mount
& q2 ~7 c. I0 T > to a printed circuit board with header connector.
5 W0 S( H% A s7 t6 |4 w>
; P% g/ ]2 ~. C, s> At this time, we are interested in samples of a pair of modems that
$ e5 |* |$ W# ]7 U- D> might be similar to this proposed system. We do not expect that you
$ I H8 o2 H; F& o3 V- P2 O& W > provide all of these specifications at this time. I can describe our
8 j7 |% L9 V# U, r> immediate application needs in the next email if this project is of
5 |3 j. W0 Y; q* ~9 F5 B> interest to you. Perhaps you can make the samples by those
$ s, e3 }' ~3 K% ^% a> specifications. This will allow us to test your radios before we move
( @ Q Y* r( F6 @! R( D. Z8 H$ P > forward. We are interested in your 900MHz radio to start.
6 g- M6 H# @* ~9 l
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