NAD 5220 - TMP4270 N IC Terminal Functions; TMP4270 N Pin Name and Function; TMP4270 N Internal Block Diagram

Terminal
Function
Description
Pin
No.
Name
Function
and
Operation
VCCA
Analog
plus
power
supply
voltage
terminal.
+5V
VCCE’
ECL
logic
power
supply
voltage
terminal.
+5V
Bit clock input terminal.
Duty
cycle
=
50%,
f
=
1.4112
MHz
is]
(2) A
VccD
PCM
digital
audio
data
input
terminal.
DATA
Inputs
in
bit
serial
(16
bit)
from
MSB
synchronized
with
BCK
falling
edge.
Not connected.
2 QO
{nput
data,
Lch
and
Rch
indication
signal
input
terminal.
Inputs
synchronized
with
BCK
falling
edge.
|
r
Ps) i?)
A
Divided clock signal output.
Ground terminal.
XO
XP
XN
‘lol oO
Q Z oO
Oscillator
input/output
terminal.
Constitutes
deformed
Colpitts
oscillator
circuit
by
combining
L,
C
&
R
with
SAW
resonator
or
X‘tal
oscillator.
ECL
logic
power
supply
voltage
terminal.
+5V
ee
ed
VEEA
Analog
minus
power
supply
voltage
terminal.
—5V
as
RSO
Rch
sample
and
hold
amp
output
terminal.
en
Rch
sample
and
hold
and
minus
input
terminal.
ae
Rch
output
offset
adjustment
terminal.
Normally
connected
to
GND
A.
Rch
integral
amp
output
terminal.
Eo
ll
Rch
integral
amp
minus
input
terminal.
—_ = Le al
—_
wo
VCCE
14,15
=
AA
=
~
ps] ey
OSR
20
= = o foe}
21
Voc
Discharge
circuit
reference
voltage
terminal.
eee
ae
Current
source
fine
adjustment
terminal.
Normally
connected
to
GND
A.
22 IADJ
23
IREF
Reference
current
input
terminal.
24
GND
S
Ground
terminal.
25
GNDA
Analog
ground
terminal.
LI
Lch
integral
amp
minus
input
terminal.
[eeiies
N
+}
i)
NS NS
co eo ~~
LIO
Lch
integral
amp
output
terminal.
OSL
Lch
output
offset
adjustment
terminal.
VEE
pas
aber
Normally
connected
to
GND
A.
LS!
Lch
sample
and
hold
amp
minus
input
terminal.
ene
LSO
Lch
smaple
and
hold
amp
output
terminal.
~
pa
wD
E
10