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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

2 s, q' e( O# G: Z# M$ D# s 客户要求如下,如果哪家工厂可以做,请和我联系
: W) z2 v4 N/ Q! K7 p" w. d4 Y> The application that we have in mind is similar to others that we commonly
: A, X- i) ]& w+ D( _$ K> have. If we were to pay for FCC approval, we would want to use the modem
4 @( _! F- M. E u8 c5 T! Q > units in all similar applications under the same approval number.
% B% [& W" v% B > Therefore, we would like to be able to configure the units to a specific
8 H5 e3 Z, h/ E4 x5 W: Q' `+ t> application. For the business that we do, this approach will yield more
0 l$ E/ c9 |) [4 j, a > sales based on the same product and approval. We are interested in the
3 K5 W: y( ]+ G7 n9 n, f/ _( p3 d > following specifications:
6 @+ i9 x) X2 v+ g2 l% X& N% Z>
: @7 Y* z2 J) k# m# X2 L > - 2 inputs at the Transmitter with three possibilities;
) M+ c4 y9 Z- ]> 2 analog
( G6 j' y; |) D5 f- I4 R3 ^$ G> 2 digital
' B( O! |. q0 x6 |4 v > 1 analog and 1 digital
7 q9 H/ u& q9 K! e. i' S# K>
5 u3 r8 _! d! F- N6 U" b' X> - 2 outputs at the Receiver with three possibilities to match inputs
& R( N9 ^( Q ^8 [ >
8 S9 Q1 I: H( R6 M; g! p: D> - Ability to configure/define analog Transmitter input ranges through
; f) i* g! @" s$ q. l! C> simple programming method to correspond with full-range analog Receiver
+ w7 D$ K, O- L$ |- O0 w> outputs (0 - full voltage).
3 g1 m' R0 h: W" b1 V* \5 K- r >
( y5 I: O- m6 x' ~6 R' C9 ^7 G1 F> - Ability to configure and set sample rates for the inputs.
. x d1 x3 |" V! Q: h- h( S e>
% A" t% y9 X7 ?> - Digital output on Transmitter that turns on during the sampling period.
5 M+ Z; e* Y3 f% z* v* [ >
; k: c0 _% r9 V q" F! T, R> - Ability to configure a power saving Sleep Mode in the Transmitter by
9 a) `+ G6 H% o6 j: F/ S+ } > both software control and input hardware control.
% }# P6 p6 A4 N3 v/ T# C, T. N. ]>
0 O5 l2 c' N% K) O- {& W> In order to configure the units, we would need a way to make the
8 u, Z+ G* S- ?' s> settings. This would preferably be from a computer terminal so that
N4 C; B. y/ \& Y8 B, R > configurations can be saved or easily duplicated for production volumes.
& l# v' S. I4 C6 |- x> The units should be small and compact with shielding, and able to mount
- e' q% L' {, O0 r' c7 I: U& d# N. c) k& @> to a printed circuit board with header connector.
# R$ F5 M2 X. I+ x" A3 C3 C2 ^>
$ X! a; P; ~ N# T, X > At this time, we are interested in samples of a pair of modems that
6 i) c0 W- i) |4 {& W4 Y2 ^> might be similar to this proposed system. We do not expect that you
0 y0 R1 M$ N. o! `; \: z> provide all of these specifications at this time. I can describe our
+ a; c! u& X6 J# x > immediate application needs in the next email if this project is of
9 K8 n: `! H' a3 k- X* n* V> interest to you. Perhaps you can make the samples by those
6 U. o0 Z/ [; g$ Z: ^ > specifications. This will allow us to test your radios before we move
: r( ?- I, t$ K1 u) f! p% k) [> forward. We are interested in your 900MHz radio to start.
2 B6 ~' f* \* @8 q
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