MAX14820 Datasheet, PDF (14/29 Pages) Maxim Integrated Products – IO-Link Device Transceiver

MAX14820
IO-Link Device Transceiver
Pin Configuration
TOP VIEW
18 17 16 15 14 13
DI 19
12 TXC
GND 20
11 TXQ
C/Q 21
DO 22
MAX14820
10 I.C.
9 V_L
VCC 23
+
VP 24
*EP
8 SDI
7 SDO
12 3 4 56
TQFN
(4mm × 4mm)
*CONNECT EXPOSED PAD TO GND.
Pin Description
PIN NAME
FUNCTION
1
LDOIN 5V Linear Regulator Input. Bypass LDOIN to GND with a 0.1FF ceramic capacitor.
5V Power-Supply Input and 5V Linear Regulator Output. Bypass V₅ to GND with a 0.1FF ceramic capacitor
2
V₅ for 10mA load capability. Add the recommended compensation network to increase the source capability to
30mA. See the 5V and 3.3V Linear Regulators section for more information.
3
LDO33 3.3V Linear Regulator Output. Bypass LDO33 to GND with a 1FF ceramic capacitor.
4
IRQ Active-Low Interrupt Request Output. IRQ is a push-pull output referenced to V_L.
5
SCLK SPI Clock Input
6
CS Active-Low SPI Chip-Select Input
7
SDO SPI Serial-Data Output
8
SDI SPI Serial-Data Input
9
V_L
Logic-Level Supply Input. V_L defines the logic levels on all the logic inputs and outputs. Bypass V_L to GND
with a 0.1FF ceramic capacitor.
10
I.C. Internally Connected. Connect to V_L or leave unconnected. It is recommended to connect to V_L.
11
TXQ
Transmit Level Input. The logic on the C/Q output is the inverse logic level of the signals on the TXC and
TXQ inputs. TXQ is ANDed with TXC. Drive TXQ high if not in use.
12
TXC
Transmit Communication Input. The logic on the C/Q output is the inverse logic level of the signals on the
TXC and TXQ inputs. TXC is ANDed with TXQ. Drive TXC high if not in use.
13
TXEN Transmitter Enable. Drive TXEN high to enable the C/Q transmitter. TXEN is referenced to V_L.
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