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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

# D4 C+ X; |4 f客户要求如下,如果哪家工厂可以做,请和我联系
( a) z/ S# g: \) Z0 s> The application that we have in mind is similar to others that we commonly
! l' b2 f, k/ b( ~8 m > have. If we were to pay for FCC approval, we would want to use the modem
, i6 m( S+ V( n> units in all similar applications under the same approval number.
% f, i; c) `3 h> Therefore, we would like to be able to configure the units to a specific
8 z' G5 }$ m! N9 H6 M' V > application. For the business that we do, this approach will yield more
+ h: z" T7 `% n6 v X- X- e> sales based on the same product and approval. We are interested in the
f0 ~4 j' Y2 C+ w( q > following specifications:
& a, u Q5 b0 i2 z3 o: p9 C& ^ >
' ?( N5 ?- E- f$ E: `+ [* k> - 2 inputs at the Transmitter with three possibilities;
. A' X+ T W* _" L3 I+ n$ l8 |> 2 analog
" Q: \( H! J4 t( P, g& v> 2 digital
! Z- f* _5 t- G- t8 _ > 1 analog and 1 digital
% C' A) }- {5 m7 v! v, z# [; Y) o7 z5 o >
. y% ?6 W% C. E! \5 G7 E > - 2 outputs at the Receiver with three possibilities to match inputs
% b( P& s% G9 t+ p: @8 O _9 n >
4 |& D( O/ V; b/ W- P2 e > - Ability to configure/define analog Transmitter input ranges through
0 @2 H( a. I6 ^' h> simple programming method to correspond with full-range analog Receiver
: U/ c/ O; |8 t/ I \5 O> outputs (0 - full voltage).
( F; Y5 e. h% P5 o$ J- f( D >
: {- z6 g. _( A( z* U S > - Ability to configure and set sample rates for the inputs.
1 o+ t' @5 m9 A. E' X4 E X >
. \/ A" E: J. U; M1 S8 c> - Digital output on Transmitter that turns on during the sampling period.
7 u: |9 t3 V! g8 y5 e>
' y3 R9 X s, |7 w> - Ability to configure a power saving Sleep Mode in the Transmitter by
w8 D U" p" w% A8 M |' U> both software control and input hardware control.
) c( b2 }! t; s' M X) O! P >
: y5 f) f9 K7 P8 g& e% e/ S > In order to configure the units, we would need a way to make the
4 K1 n" y9 F) F/ r1 ^2 I > settings. This would preferably be from a computer terminal so that
" `) x' H4 _ J0 J: u > configurations can be saved or easily duplicated for production volumes.
+ D7 e' |# v) s, k& M> The units should be small and compact with shielding, and able to mount
5 E# U$ I. K; o1 k > to a printed circuit board with header connector.
, o, Z9 s3 H4 g* X2 m8 U% o/ {5 B>
2 B A8 d' Z+ K( ]> At this time, we are interested in samples of a pair of modems that
1 U6 x: i' j4 A' i2 ^# J( F > might be similar to this proposed system. We do not expect that you
# i9 H3 n5 q% i# c& j G/ O: x* w> provide all of these specifications at this time. I can describe our
) u1 W* d& Z9 F$ ~" W, q > immediate application needs in the next email if this project is of
5 T4 J' v S0 x> interest to you. Perhaps you can make the samples by those
+ Q; |) H. y) Z l$ p" x: s > specifications. This will allow us to test your radios before we move
h& p8 A9 v- R9 J0 p$ X; y s$ @7 w) q> forward. We are interested in your 900MHz radio to start.
1 |. y3 z7 R9 {) Q3 `
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