M-S u r
Te h oo ie
C r
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q a e
c n lg s
o p
A Subsidiary o f R e alte k G ro up
RTS0 0 7 5
PLAYBACK / RECORD WITH MELODY GENERATOR
F e a tu r e s
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Operating voltage range: 3.3V - 5 .0 V
L ow pow er c ons u m ption in P ow er D ow n m od e
B u ilt-in 1 0 8 K b its S R A M (b as ed on 6 K s am pling rate and 6 s ec ond s of rec ord ing length )
7 8 0 notes d u al tone m elod y
D u al osc illators for m elod y and rec ord /play b ac k
P rovid e fou r triggers (T R 1 B - T R 4 B ) and th ree k ind s of trigger m od es :
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T R 1 B : ON E -S H OT trigger k ey
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T R 2 B : L E VE L -H OL D trigger k ey
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T R 3B , T R 4 B : ON /OF F trigger k ey
P rovid e C N T 1 ,C N T 2 , C N T 3 as ou tpu ts :
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C N T 1 : rec ord ing ind ic ator
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C N T 2 : play ing ind ic ator
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C N T 3: m elod y play ing ind ic ator (F lash ing of L E D follow s m ain tone of th e m elod y .)
P in options :
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1 : 3H z L E D flash ing or ac c ord ing to m ain tone
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2 : R ec ord er + m elod y
R ec ord er + m elod y + rec ord er
R ec od er Only
P rovid e 鈥?B E E P 鈥?s ou nd to ind ic ate play ing s tarting and m em ory fu ll. T h e freq u enc y (2 K H z or 4 K H z ),
play ing tim es (tw o or th ree tim es ), and s ou nd enab led /d is ab led of th e 鈥?B E E P 鈥?s ou nd c an b e c h anged
b y m as k option.
T y pic al os c illator freq u enc y for th e rec ord er: 1 9 2 K H z
T y pic al osc illator freq u enc y of m elod y : 1 2 8 K H z
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Ge n e r a l De s c r ip tio n
R T S 0 0 7 5 is a rec ord /play b ac k & m elod y generator IC w h ic h h as a b u ilt-in S R A M to s ave voic e d ata,
A /D and D /A c onverters to d igitiz e voic es , and m ic roph one am plifier to am plify voic e s ignals , s o th at only
few ex ternal c om ponents is need ed . It h as fou r trigger pins , w h ere eac h trigger pin c an d irec tly trigger th e
c orres pond ing m elod y grou p. T h e P lay fu nc tion provid es th ree d ifferent trigger m od es (one-s h ot, level-
h old , On/Off). R T S 0 0 7 5 als o provid es th ree ou tpu t pins (C N T 1 , C N T 2 , C N T 3) to m eet d ifferent u s er
applic ations . R T S 0 0 7 5 is s u itab le for m es s age rem ind ers , alarm c loc k s , toy s , and oth er m elod y
applic ations .
Blo c k Dia g r a m
TR1
TR4
R EC B
C ontrol
M elod y
SR A M
R OS C
Os c illator
D /A
A U D
V1.7 D a ta S h e e t
Nov, 28/2001
w w w .m sq uare te c h .c o m
P age 7of1
The above information is the exclusive intellectual property of M-S q uare Technolog ies C orporation and shall not be d isclosed , d istributed w ithout permission from M-S q uare.
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