AK2127 Datasheet, PDF (3/6 Pages) List of Unclassifed Manufacturers – Receiver/ Demodulator for time code signals transmitted by the transmitter

Pin Description
Pad-No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Pin-No.
(SOP 16)
1
-
2
3
4
5
6
7
8
9
10
11
-
12
13
14
15
16
16
Symbol
E3Q
A2
A1
AP1
AP2
E1
V_CC2
PON
V_CC1
OPD
OPU
GND1
KS
SR
CR
CD
AP3
GND3
GND2
Function
Amplifier 3 input
Amplifier 2, non inverting output
Amplifier 2, inverting output
Bias control
Bias control
RF input, antenna
Supply voltage 2, internal band gap
Stand-by and Start / Stop-switch
Supply voltage 1
Output time code, pull-down
Output time code, pull-up
Ground (digital)
Comparator threshold
Clamping control input
AGC time constant
Low pass filter
Capacitor for bias stability
Ground (analog)
Ground (analog)
Block Diagram and Test Circuit
6.8nF
AP2 AP1
5
4
GND1
GND1
GND1
A1
A2 E3Q
47nF
22nF
AP3
CD
4.7µF _CR
3
21
17
16
15
E1 6
V1
UE1
50
GND1
4.7µF
V_CC2 7
∆V1
V2
200k
-
V3
1p
POWER SUPPLY
TFA 2127
9
V_CC1
8
PON
V3
V1, V2
18
19
GND 3 GND 2
12
GND 1
CONTROL AMPLIFIER
14 SR
COMPARATOR
13
KS
V_CC3
V_CC1
100k
11 OPU
10 OPD
100k
V2
V1
UE1: pot core A_L1100 nH/w² ; 2 x 25 windings with 0.2 CuL
2
09/00
TFA2127