DS3174+ Maxim Integrated Products, DS3174+ Datasheet - Page 30
![IC TXRX DS3/E3 QUAD 400-BGA](/photos/6/87/68748/400-bga_21-0306_sml.jpg)
DS3174+
Manufacturer Part Number
DS3174+
Description
IC TXRX DS3/E3 QUAD 400-BGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS3171N.pdf
(234 pages)
Specifications of DS3174+
Function
Single-Chip Transceiver
Interface
DS3, E3
Number Of Circuits
4
Voltage - Supply
3.135 V ~ 3.465 V
Current - Supply
725mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
400-BGA
Includes
DS3 Framers, E3 Framers, HDLC Controller, On-Chip BERTs
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
- Current page: 30 of 234
- Download datasheet (2Mb)
PIN NAME
TOHSOFn
ROHCLKn
ROHSOFn
TOHCLKn
TOHENn
ROHn
TOHn
TYPE
O
O
O
O
O
I
I
Transmit Overhead
TOHn: When the port framer is configured for one of the DS3 or E3 framing modes, this signal
will be used to over-write the DS3 or E3 framing overhead bits when TOHENn is active. In T3
mode, the X-bits, P-bits, M-bits, F-bits, and C-bits are input. In G.751 E3 mode, all of the FAS,
RAI, and National Use bits are input. In G.832 E3 mode, all of the FA1, FA2, EM, TR, MA, NR,
and GC bytes are input. The TOHSOFn signal marks the start of the framing bit sequence. This
signal is sampled at the same time as the TOHCLKn signal transitions high to low.
This signal can be inverted.
Transmit Overhead Enable / Start Of Frame Input
TOHENn: When the port framer is configured for one of the DS3 or E3 framing modes, this
signal will be used the determine which DS3 or E3 framing overhead bits to over-write with the
signal on the TOHn pins. The TOHSOFn signal marks the start of the framing bit sequence.
This signal is sampled at the same time as the TOHCLKn signal transitions high to low.
This signal can be inverted.
Transmit Overhead Clock
TOHCLKn: When the port framer is configured for one of the DS3 or E3 framing modes, this
clock is used for the transmit overhead port signals TOHn, TOHENn and TOHSOFn. The
TOHSOFn output signal is updated and the TOHn and TOHENn input signals are sampled at
the same time this clock signal transitions from high to low. The external logic is expected to
sample TOHSOFn signal and update the TOHn and TOHENn signals on the rising edge of this
clock signal. This clock is a low frequency clock.
This signal can be inverted.
Transmit Overhead Start Of Frame
TOHSOFn: When the port framer is configured for one of the DS3 or E3 framing modes, this
signal is used to mark the start of a DS3 or E3 overhead sequence on the TOHn pins. In T3
mode, the first X-bit is marked. In G.751 E3 mode, the first bit of the FAS word is marked. In
G.832 E3 mode, the first bit of the FA1 byte is marked. The sequence starts on the same high
to low transition of the TOHCLKn clock that this signal is high. This signal is updated at the
same time as the TOHCLKn signal transitions high to low.
This signal can be inverted.
Receive Overhead
ROHn: When the port framer is configured for one of the DS3 or E3 framing modes, this signal
outputs the value of the receive overhead bits. The ROHSOFn signal marks the start of the
framing bit sequence. In T3 mode, the X-bits, P-bits, M-bits, F-bits, and C-bits are output (Note:
In M23 mode, the C-bits are extracted even though they are marked as data at the payload
interface). In G.751 E3 mode, all of the FAS, RAI, and National Use bits are output. In G.832
E3 mode, all of the FA1, FA2, EM, TR, MA, NR, and GC bytes are output.
This signal is updated at the same time as the ROHCLKn signal transitions high to low.
This signal can be inverted.
Receive Overhead Clock
ROHCLKn: When the port framer is configured for one of the DS3 or E3 framing modes, this
clock is used for the receive overhead port signals ROHn and ROHSOFn. The ROHSOFn and
ROHn output signals are updated at the same time this clock signal transitions from high to low.
The external logic is expected to sample ROHSOFn and ROHn signal on the rising edge of this
clock signal. This clock is a low frequency clock.
This signal can be inverted.
Receive Overhead Start Of Frame
ROHSOFn: When the port framer is configured for one of the DS3 or E3 framing modes this
signal is used to mark the start of a DS3 or E3 overhead sequence on the ROHn pins. In T3
mode, the first X-bit is marked. In G.751 E3 mode, the first bit of the FAS word is marked. In
G.832 E3 mode, the first bit of the FA1 byte is marked. The sequence starts on the same high
to low transition of the ROHCLKn clock that this signal is high. This signal is updated at the
same time as the ROHCLKn signal transitions high to low.
This signal can be inverted.
DS3/E3 OVERHEAD INTERFACE
30
PIN DESCRIPTION
Related parts for DS3174+
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![MAX7528KCWP](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX3261CCJ](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX3263CAG](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX8809AETL+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
![MAX1535CETJ+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
![DS2741N+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
![MAX13450EAUD+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
![MAX13451EAUD+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
TSSOP 14/A°/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
![MAX17497BATE+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
QFN 16/A°/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
![MAX17502FATB+T](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products
![MAX1978EVKIT](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
Integrated Temperature Controller f
Manufacturer:
Maxim Integrated Products
![MAX2606EUT+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
![MAX2608EUT+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
SOT23-6/I°/45MHz to 650MHz, Integrated IF VCOs with Differential Output
Manufacturer:
Maxim Integrated Products
![MAX2831EVKIT+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
EVALUATION KIT/2.4GHZ TO 2.5GHZ 802.11G/B RF TRANSCEIVER WITH INTEGRATED PA
Manufacturer:
Maxim Integrated Products
![MAX4888CETI+](/images/manufacturer_photos/0/4/417/maxim_integrated_products_tmb.jpg)
Part Number:
Description:
QFN/E/DUAL PCIE/SATA HIGH SPEED SWITCH WITH INTEGRATED BIAS RESISTOR
Manufacturer:
Maxim Integrated Products
Datasheet: