PT2
2399
Echo P
Processo IC
or
D
DESCR
RIPTIO
ON
Th PT2399 is a single chip echo proces
he
p
ssor IC utilizi
ing
CM
MOS techno
ology. Which accept anal
log audio inp
put
sig
gnal, a high sample rate ADC trans
e
sfer the anal
log
sig
gnal into a bi stream then storage to internal 44K
it
Kbit
RA after pro
AM,
ocessing the bit stream w de-modula
will
ate
by DAC and lowpass filt
y
ter. Overall delay time is
de
etermined by internal VCO clock frequ
O
uency, and us
ser
ca easy to ch
an
hange the VCO frequenc by changi
cy
ing
the external r
e
resistance. T
The PT2399 performs lo
9
ow
dis
stortion (TH
HD<0.5%@0.5Vrms) an
nd low noi
ise
(N
No<-90dBV) c
characteristic for audio pu
c
urpose, and p
pin
arrangement a
and applicatio circuit are optimized for
on
e
asy
out
saving advan
ntage.
ea PCB layo and cost s
F
FEATU
URES
CMOS t
technology
Least ex
xternal comp
ponents
Auto res Function prevent POP noise
set
P
Low nois SNR bett than 90dB (typical)
se,
ter
B
Low dist
tortion, THD= 0.5%(typica
=
al)
User adj
justable VCO clock frequ
O
uency.
A
APPLIC
CATIO
ONS
KARAOKE Mixer
CD/DVD P
Player/Recor
rder
Multimedi TV
ia
Car Enter
rtainment Sys
stem
Music Instrument effec
cter
Electronic Toy
cs
B
BLOCK DIAG
K
GRAM
Tel: 8
886-2-66296288
‧
Fax: 886-2-29
8
9174598
‧
http:/
//www.princeton
n.com.tw
‧
2F, No 233-1, Baocia Rd., Sindian D
o.
ao
Dist., New Taipe City 23145, Ta
ei
Taiwan
PT2
2399
A
APPLIC
CATIO CIR
ON
RCUIT
E
ECHO
No
ote:
Ex
xternal Resistor h
having a value o 10 KΩ to 50 K may be used The recomme
of
KΩ
d.
ended Resistor Value(R) is 10 K
Ω.
When the va
alue of the Resis (R)
stor
creases, the range of the Delay Time also incre
eases.
inc
S
SURROU
UND/DE
ELAY
No Please refer to Table 1 for the Resistor/Delay Time values.
ote:
r
.
V1
1.8
2
January 2017
PT2
2399
ORDER INFO
O
R
ORMA
ATION
Valid Part Numbe
d
er
PT2399
PT2399S
P
PT2399-SN
Pack
kage Type
16 Pins, DIP, 300mil
16 Pins, SOP, 300mil
16 Pins, SOP, 150mil
Top Cod
de
PT2399
9
PT2399S
S
PT2399-S
SN
P
PIN CO
ONFIGURAT
TION
P
PIN DE
ESCRIP
PTION
N
Pin Name
VCC
REF
AGND
DGND
CLK_O
VCO
CC1
CC0
OP1-OUT
OP1-IN
OP2-IN
OP2-OUT
LPF2-IN
LPF2-OUT
T
LPF1-OUT
T
LPF1-IN
I/O
O
-
-
-
-
O
I
-
-
O
I
I
O
I
O
O
I
De
escription
Analo supply vol
og
ltage input
Analo reference voltage (1/2
og
2VCC)
Analo ground
og
Digita ground
al
Syste clock outp pin
em
put
VCO Frequency a
adjustment
Curre control 1
ent
Curre control 0
ent
OP amplifier 1 inp
put/output. Th pin can be used as
his
e
ulated/Demod
dulated integ
grator by connecting capa
acitor
modu
OP A
Amplifier 2 inp
put/output. Th pin can b used as
his
be
Modu
ulated/Demod
dulated Integ
grator by connecting Capa
acitor
Low p
pass filter 2 input/output p
pin
Low p
pass filter 1 input/output p
pin
Pin No
o.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
V1
1.8
3
January 2017
PT2399
IMPORTANT NOTICE
Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements,
improvements, and other changes to its products and to discontinue any product without notice at any time.
PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No
circuit patent licenses are implied.
Princeton Technology Corp.
2F, 233-1, Baociao Road,
Sindian, Dist., New Taipei City 23145, Taiwan
Tel : 886-2-66296288
Fax: 886-2-29174598
http://www.princeton.com.tw
V1.8
9
January 2017
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