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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

! u7 g$ T+ r; d; d9 }; W4 w客户要求如下,如果哪家工厂可以做,请和我联系
+ a3 _8 P, W. E$ t3 e > The application that we have in mind is similar to others that we commonly
: D$ l7 f, d1 t) H > have. If we were to pay for FCC approval, we would want to use the modem
) B+ w U$ b3 s/ m* L > units in all similar applications under the same approval number.
) m& b$ A3 \/ q+ F; d# c> Therefore, we would like to be able to configure the units to a specific
, n+ q0 Z4 Z: [- Z$ ?> application. For the business that we do, this approach will yield more
) h T9 o( t7 b0 v9 G5 b> sales based on the same product and approval. We are interested in the
' R1 H& D% [0 s> following specifications:
" P% p% J6 J6 m0 Z0 d1 ] >
9 |- Q2 @) N5 D6 `# f- N> - 2 inputs at the Transmitter with three possibilities;
& A. E- N, O7 i7 X! ? > 2 analog
5 S3 ?/ v: V6 l B& Q5 c> 2 digital
, p; ^5 }/ W7 O U> 1 analog and 1 digital
4 U# I4 Z$ N% Y: \' } >
& |0 |9 a3 |9 }) R' t: z. x+ c+ }> - 2 outputs at the Receiver with three possibilities to match inputs
0 D, T6 @9 N0 ~>
3 k+ u0 v+ g; Y K/ \) \> - Ability to configure/define analog Transmitter input ranges through
& ^3 G5 j/ t% {% }& |" V > simple programming method to correspond with full-range analog Receiver
8 P8 V# F, T; e2 N > outputs (0 - full voltage).
7 |, h* m8 O5 B' i >
# s& j+ Z' G( r; ~7 } > - Ability to configure and set sample rates for the inputs.
! Z' h* N3 f/ a) p. W >
. W/ ~4 l4 h4 z" Z! s* d > - Digital output on Transmitter that turns on during the sampling period.
1 F/ Z; Q6 ?4 j0 K>
1 D# v Q! N* S' S( _% c1 K$ Z: B > - Ability to configure a power saving Sleep Mode in the Transmitter by
T$ q, x" A4 g, L& h g> both software control and input hardware control.
2 l8 I0 U" e" z) L/ x8 x >
8 s* n* q6 U0 l6 S S3 K% \> In order to configure the units, we would need a way to make the
) z" C7 ?% m {" r: d" r3 p7 u > settings. This would preferably be from a computer terminal so that
, }8 N# p$ D/ k9 V# g7 o > configurations can be saved or easily duplicated for production volumes.
* B- h6 K$ v4 x. o. O# Z9 m( S> The units should be small and compact with shielding, and able to mount
% E. K# l8 `$ p" p1 D" ? > to a printed circuit board with header connector.
. B- J9 {* n. `6 r) o, T7 w( e >
! A3 a+ Z+ i9 M' c, N: I% T > At this time, we are interested in samples of a pair of modems that
, t0 V$ Q A1 H& p2 I1 U > might be similar to this proposed system. We do not expect that you
8 H# T( I7 i8 [: G# G) L> provide all of these specifications at this time. I can describe our
# G+ u1 | P" M. h x: L: p- c> immediate application needs in the next email if this project is of
. N- B: t, v) s; ]& H" u; c> interest to you. Perhaps you can make the samples by those
; f8 ]% s& Y0 d( z, d> specifications. This will allow us to test your radios before we move
( n: k' n9 D; N( P" p' H > forward. We are interested in your 900MHz radio to start.
! v1 {2 e+ Q2 o# _
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