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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

+ w* U8 t% {0 [7 X) w 客户要求如下,如果哪家工厂可以做,请和我联系
, U3 a i6 @+ ]> The application that we have in mind is similar to others that we commonly
! o1 ]" M0 Z P! N, W > have. If we were to pay for FCC approval, we would want to use the modem
, y9 E. y" c, s# i> units in all similar applications under the same approval number.
) R* }7 P, G! k0 I > Therefore, we would like to be able to configure the units to a specific
6 e5 M( G* J* G9 h2 Z> application. For the business that we do, this approach will yield more
. K" A; j1 q- U: [* |1 h > sales based on the same product and approval. We are interested in the
6 c4 N" @0 m" [9 C7 _6 f$ d > following specifications:
0 v* G: y* p+ c1 a5 E6 B7 [& f% i>
4 z* F- G0 W q7 d: B4 e> - 2 inputs at the Transmitter with three possibilities;
% I# e) t' m/ E( o, V> 2 analog
$ }4 E0 Q; T& t7 T> 2 digital
( f! J1 Y: m( M; z4 L2 v > 1 analog and 1 digital
* g: C4 J E2 p( r. l4 z8 `>
9 D9 N4 ^; D' I: J2 f' w > - 2 outputs at the Receiver with three possibilities to match inputs
' [4 ]4 b" A2 M0 l) K5 D4 G# `2 `: D >
: o& `+ t( P s# Z E> - Ability to configure/define analog Transmitter input ranges through
* B* ~5 I ?; F) i> simple programming method to correspond with full-range analog Receiver
4 r" r9 r7 \* N: U2 @8 H > outputs (0 - full voltage).
8 i- H7 ]. z7 m L) ~: B6 R* b>
( v' q3 p" y. e E1 U> - Ability to configure and set sample rates for the inputs.
5 D8 X) n z/ ^3 q2 `4 _# \, ~2 I>
: ?# \% D' I3 m: J% r> - Digital output on Transmitter that turns on during the sampling period.
- {9 L3 q8 w+ ~# m7 M6 T; y' y>
! e, l$ Z1 L. M- K$ {( s/ s* ~> - Ability to configure a power saving Sleep Mode in the Transmitter by
; | p5 ^* H- K! z. b+ m> both software control and input hardware control.
- Y" H! i$ y8 c! Y! O1 ? >
: s/ d/ x9 ]9 U/ Q> In order to configure the units, we would need a way to make the
4 @5 k3 y9 l, j4 z& \$ M9 l > settings. This would preferably be from a computer terminal so that
, [5 F0 a3 v# {> configurations can be saved or easily duplicated for production volumes.
' @5 V. @9 Q# A9 {" m > The units should be small and compact with shielding, and able to mount
: T# \) a* Z8 k; F& z# P: D$ \+ Y> to a printed circuit board with header connector.
. a9 N& H; H' m3 F0 y. S >
$ L2 G7 Z) s3 N( g1 U > At this time, we are interested in samples of a pair of modems that
5 V, r7 b: h8 P- u > might be similar to this proposed system. We do not expect that you
: h6 r$ b5 E9 Z! \& n7 R3 M> provide all of these specifications at this time. I can describe our
1 v+ |4 o F7 M5 X > immediate application needs in the next email if this project is of
7 u6 A0 D2 |' A, H> interest to you. Perhaps you can make the samples by those
+ H8 S& @: l1 h+ y5 n: j- i > specifications. This will allow us to test your radios before we move
) G4 N! n3 N8 \0 ~0 B9 v> forward. We are interested in your 900MHz radio to start.
# L7 w1 A7 ^7 L
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